Tentaquil and its pre-evo, Pitipole, will rarely spawn in watery areas of lush caves biomes. We blend science with intuition to create focused formulas that get to the. Both pothos and philodendrons can be propagated by cuttings, but. Alternatively, if you are new to analysis, want to have more of a disccussion, or are seeking technical advice, our Basis FACTS and Soil & Water qualified advisors are here to help you. Node — An area on a stem where a leaf, stem or flower bud is located. Type # 1. To understand the molecular basis of soybean LPA, we identified a soybean mutant with increased LPA, designated Gmilpa1, in a gamma ray-induced mutant population derived from the Chinese soybean cultivar, Hedou 12 (Song et al. Body Structure. 19. A stem may also be a rhizome as well as a tuber (often incorrectly called a corm or a bulb) and grow beneath the soil. 1%) than in the stem (2. Next time you’re enjoying the relaxing tropical appeal of a palm, you can impress anyone around with your newly acquired. Reem Abukmeil Ph. ECI ukãi umue a endele vovenda yoku landisa alivulu, wa sumuile calua, kuenje wa vangula lukuakulandisa hati: “Ovenda yove yeyuka to alivulu, pole, sia sangelemo elivulu li pondola oku kuatisa omõlange!”14 Irina Holobiuc, Rodica Blindu 2 While it is always preferable to conserve and protect species by preserving their native habitat (known as in situ), the ex situ conservation is also needed. Jako jeden z předních 10m3 21. What does petiole mean? Information and translations of petiole in the most comprehensive dictionary definitions resource on the web. 1%) and petiole (2. PubMed4. 4. This leaf drop is caused by the feeding of maple petiole borers, Caulocampus acericaulis. 3. Finally, Philodendron nangaritense typically has green. In entomology, petiole is the technical term for the narrow waist of some hymenopteran insects, especially ants, bees, and wasps in the suborder Apocrita . 116). Biology. It helps in transporting water and nutrients throughout the leaf. Grapevine nutrient status can be determined by three methods: Observing visual symptoms. The petiole is 0. stalk. Petiole borers are small insects called sawflies, which are non-stinging wasps. delphinii. Stem: The stem is long, slender and freely-branched rhizome of indefinite growth that grows on or just below the soil surface. The meaning of PETIOLE is a slender stem that supports the blade of a foliage leaf. Briefly, insert batteries “+” side up and attach the sensor to the probe. Simple leaves may be variously lobed along their margins. American lotus is native to North America but some New England populations are certainly introduced. In other instances, specifically those of compound leaves, the stalk of compound leaves. more expensive than seed propagation. The following points highlight the five main types of petioles found in plants. . This pattern (along with most of my earlier work) was retired in the summer of 2022. 2: A leaf is usually composed of a blade and a petiole. Petiole of Nymphaea Stellata 5. , 2015). Petiole. Our project will help agronomists, plant physiologists, plant breeders, agriculture chemists and ecologists to improve productivity of leaf area measurement. Herein, ultralong anisotropic cellulose nanofibril (CNF) aerogels with uniformly ordered structures of pore walls inspired by lotus petioles were. In July 2007, a severe petiole (rachis) blight disease was observed on several California fan palms (Washingtonia filifera) in the vicinity of Heraklion (Crete), Greece. After the leaf drops the larva completes its feeding and bores into the ground to enter the transition stage (pupae) in which it spends the winter. It occupies a position on the submergence-tolerant side of a gradient of Rumex spp. Plant metabolites are important for plant development and human health. Figure 4. Here are four scenarios in which your Pilea peperomioides will turn red. Parts of a Leaf. However, the molecular and cellular mechanisms that underlie differentiation of the AZ are largely unknown. , 2020), which are important photosynthetic organs of compound leaf plants (Oliveira et. If an internal link led you here, you may wish to change the link to point directly to the intended article. The margin is the edge of the leaf. Petiole of Helianthus Annuus 3. Abstract and Figures. Larvae are cream-colored with brown heads, legless and about 1/3 inch long when fully grown. The Fuzzy Petiole Philodendron (Philodendron nangaritense) is one such unique plant, with its crimson, fuzzy petioles standing out from the crowd. Subjects and methods: Patients included those undergoing airway reconstruction. they have no petioles but instead attach directly to. In this. Note: The petiole is a part of the leaf. Petiole Pro's capabilities have the endorsement of over. The Application Programming Interface (API) is a crucial component of our smartphone-based platform, Petiole Pro. , 2018). Carefully Selected Natural Ingredients! From our belief in veganism as the best dietary choice for our bodies and planet, our team brought forth the most delicious plant-based culinary experience for your wellness, ensuring you get all the nutrients your body needs from 100% plant-based sources. Hyponastic (upwardly bending) growth by leaves is a response of numerous plant species to adverse environmental conditions. Petiole (insect anatomy), the narrow waist of some hymenopteran insects. The Arabidopsis BLADE-ON-PETIOLE 1 (BOP1) and BOP2 genes encode redundant transcription factors that promote morphological asymmetry during leaf and floral development. The stems are woody and terete. 4. The trees have tall trunks, up to 25 metres (82. , cloudy spot, stinkbugs had caused to the tomato fruit. 3. of shoots Per cent shoot Medium composition formed per explant regeneration MS basal medium + 1. Its popularity arises from the speed and simplicity of analysis. Chlorophyll in the ______ gives them a green color and allows plants to perform photosynthesis. Roots decay. Meaning of petiole. These are hackberry, Celtis occidentalis L. The ideal temperature range for this plant is between 65°F to 80°F (18°C to 27°C), which provides the perfect conditions for the plant to grow and develop. Plant organ. (Celtidaceae), is a host for the hackberry petiole gall psyllid, Pachypsylla venusta (Osten-Sacken). Investment Grade Bond Funds. In simple leaves, the lamina is continuous. Tendril. Hosts (Back to Top). In the moss Physcomitrella patens, the transition from protonema to gametophore is a particularly important step as it results in a change from two-dimensional to three-dimensional growth of the plant body. Call the MSU Extension Garden Hotline at 888-678-3464 for help with your insect or animal problems. The borer larvae remain in the portion of the stem left on the tree. twig. The snake plant (Sansevieria), a monocot, can be propagated by cutting the long leaves into 3- to 4-inch pieces. 1. Many of these species present petioles with a swollen apical and/or a basal region, morphologically resembling a. What does pigpile mean? Information and translations of pigpile in the most comprehensive dictionary. We investigated. Hosta petiole rot, caused by the fungus Sclerotium rolfsii. 1. It is well known that this. The upper angle between a petiole/leaf (or branch) and the stem. We investigated the possible scaling of the petiole–lamina relationships in. Leaf base : The part of the leaf which is attached to the stem or a branch is called leaf base. a. Life cycle There is one generation per year. View 4 images of Tentaquil [Cobblemon] on Modrinth. Leaf Parts. Carrot, beet, radish and onion are in this category with their main edible parts residing either at the growing medium surface or below it. 1. Here, we identified two Single-Nucleotide Polymorphisms (SNPs) in the Indoleacetic Acid (IAA). 3 Parts of a Leaf. Petiole pithiness in celery, Apium graveolens L. Definition of cipolle in the Definitions. Lower leaves yellow and wilt. Shoots were regenerated by culturing the explants on MS basal medium containing 0. Preferred Equity. The leaves usually have a sheath, petiole or leafstalk, and a. The petiole is the stalk that supports a leaf in a plant and attaches it to the stem. 7. Prior to joining Petiole in 2019, Naji was head of investments for The Family Office Co. The flowers are solitary and cauliflorous. Additional veins branch from the midvein. Costapalmate leaves are intermediate between pinnate and palmate leaves, with the overall leaf blade being round to oval in shape. Each plant species has a characteristic leaf arrangement and form. Phytochrome photoreceptors regulate plant responses to the environment in large part by controlling the abundance of PHYTOCHROME INTERACTING FACTOR (PIF) transcription factors. Meaning of cipolle. [C18: via French from Latin petiolus little foot, from pēs foot] Pinnately compound leaf: Leaflets are attached at a common point, at the tip of the petiole. ft. Abstract and Figures. In entomology, petiole is the technical term for the narrow waist of some hymenopteran insects, especially ants, bees, and wasps in the suborder Apocrita . The vein that runs along the middle of the lamina is called midrib. Explore our top-tier private equity, real estate, private debt and thematic opportunities. a part that is similar to a stipe and connects the holdfast and blade of a frondose alga. Maple petiole borers live through the winter as pupae in the. The yoke seamlessly transitions into the stockinette stitch body, which is gently shaped at the waist and hip before ending with a 2x2 ribbing at the hem. Custom Pokémon Adding your own Pokémon This step-by-step guide will walk you through adding custom Pokémon through resource and data packs. Persistent stipules are affixed to the plant permanently. The photos show only a small example of the numerous forms of petioles found in the palm family. An easy way to tell the difference between Pothos and Philodendron is the shape of the leaves. Among the three axes, the former two are the best understood at the molecular. The arrangement of veins in a leaf is called the venation. Typical symptoms included discolored (brown to reddish-brown), reversed V-shaped lesions on the petiole bases of the oldest (lowest) leaves, and elongated yellow to dark-brown. , touch). Petioles vary greatly. Pestalotiopsis is a fungus that causes diseases of both the palm leaf petiole and leaf blade, often at the same time. 4. Real Estate Equity. All palm leaves are attached to the trunk by a flared leaf base. 01). By contrast, the (iso)flavonoid content was greater in the upper petiole cells than in the lower cells. Celery (Apium graveolens L. Lemon tree ( Citrus x limon) Its crown is less compact (less “dense”) than the rest. 00 40–250 Ginger root (2–3 months) 3 rd leaf blade 125–250. 4 Based on the serration on the edge of the leaf blade. The fallout of its attack is yellowing, browning. Spine – A sharp pointed structure that is a modified leaf or stipule. Most of the cells will be parenchyma. The meaning of PETIOLE is a slender stem that supports the blade of a foliage leaf. net dictionary. This disambiguation page lists articles associated with the title Petiole. Custom Pokémon Adding your own Pokémon This step-by-step guide will walk you through adding custom Pokémon through resource and data packs. For Arabidopsis (Arabidopsis thaliana) L. The Kieffer pear and the Peace Rose are two examples of. Poplar spiral gall aphid (Pemphigus spyrothecae) forms galls on the petiole in poplars (Populus) and mass infestations are frequent in poplar stands, but how these parasite gall infestations can affect the leaf lamina structure, photosynthetic rate and constitutive and stress volatile emissions is unknown. Peltate- or umbrella- shaped leaves are characterised by a petiole more or less centrally attached to the lamina on the abaxial side. The leaf is the primary photosynthetic organ of the plant. In palmately compound leaves, the leaflets form and radiate from a single point of attachment called the distal end of the petiole or rachis. the petiole of a fern frond. palustris and Rumex maritimus in low, frequently flooded regions, to relatively intolerant species such as Rumex acetosa and. Plant leaves help to sustain life on earth as they generate food for both plant and animal life. Based on Duration. Lengths of samples are shown as means (columns) ± SD (bars). Some species of trees have pinnate leaves which, when the leaves fall, shed pinnae from the petiole, which is then left as a tapering, somewhat flexible rod. 4 Based on the serration on the edge of the leaf blade. 1 4. 5 cm long. It occupies a position on the submergence-tolerant side of a gradient of Rumex spp. 2 3. Copying and Sharing ConceptNet for more details. Pronunciation of Petiole: Learn how to pronounce the word Petiole. Nearby homes similar to 1706 Petiole Pl have recently sold between $90K to $666K at an average of $225 per square foot. Species with different evolutionary histories but similar thermal and hyd. Other trees susceptible to damage are apple, ash, birch, crabapple, dogwood, oak, elm, hickory, and redbud. 2. 3 baths. subg. A short stalk connecting a leaf to a stem. 2012, 2020, 2021; Appelhans et al. Legless, white grubs with distinct light brown heads hatch from the eggs and tunnel inside the leaf stem for 20 to 30 days. net dictionary. In Arabidopsis thaliana, the AT-hook motif nuclear-localized (AHL) transcription factor family has been implicated in restricting rosette growth in response to stress. Petiole Pro's capabilities have the endorsement of over. viability of cuttings decreases with time. 00 40–250 Ginger root (2–3 months) 3 rd leaf blade 125–250 Lettuce, head (mature) wrapper leaves 0. The roots of some bulb plants, called _______ roots, can pull the plant deeper into the soil each year. 0 (1 review) Plants are able to capture energy from the sun and store it as sugars. Select the calibration pad that best suits your needs based on two factors: (a) the distance between the leaf and your camera, and (b) the size of your leaves. 1 4. In angiosperm: Leaves. Some characteristics include thorns, deep grooves, sharp edges, or smooth and round. requires more water. The meaning of PETIOLATE is having a stalk or petiole. Mainly there are two types of venation: parallel venation and reticulate venation. 1 Based on Blade. Abscissio. Among the many banana cultivars grown throughout the, saba (Musa balbisiana) is considered as one of the leaders in terms of production and trade. The three main parts of a typical leaf are 1. The objective has been to find a system that growers can use in the field to help manage nitrogen (N) and potassium (K) fertilizer—especially for drip-irrigated. The aphids overwinter as eggs on cottonwood twigs. Leaves commonly have stipules at the base of each leaf. Nova Scotia (Canada): Potatoes are the premier vegetable crop in Canada, with USD 1. The blade is the major photosynthetic surface of the plant and appears green and flattened in a plane perpendicular to the stem. What does pipole mean? Information and translations of pipole in the most comprehensive dictionary. A petiole is the stalk that joins the blade (the flat part of the leaf, also called a lamina) to the node (the attachment point on a stem). Flooding of the root zone as well as nutrition deficiency required a prolonged period. Empower your agricultural and forestry research with Petiole Pro, at the forefront of Computer Vision technologies. Leaf axil patterning occurs concomitantly with leaf development and takes place at the boundary zone which demarcates the initiating leaf primordium from the shoot apical meristem. 2020. If the petiole is small and the cutting cannot stand upright, a small portion of the blade can also be buried. Both light and temperature have dramatic effects on plant development. Light-induced leaf movements. Long-term salt stress causes morphological changes, such as the rapid. They are exceptionally strong for their size: they can lift 10 times their own weight! Most ants have two large compound eyes. The fungus has a very wide host range, so it can be a problem on many garden plants. The ant’s second body segment, the mesosoma, is packed full with muscles that power its three pairs of legs. In this study, we establish that SUPPRESSOR OF PHYTOCHROME B4-#3 (SOB3) and. BLADE-ON-PETIOLE (BOP) genes are essential regulators of. Check out our philodendron fuzzy petiole selection for the very best in unique or custom, handmade pieces from our house plants shops. And each structure. Two trees in the family Celtidaceae are hosts for the hackberry petiole gall psyllid. Vegetative parts often are used in asexual forms of reproduction. Chief Executive Officer and Chief Investment Officer. Science; Anatomy and Physiology; Anatomy and Physiology questions and answers; Mentity there indicate wife type of me when vecessoren pit, villigloble cell mirim ME E Squanons Gell Mo 1 gastric Pits H C: M I: villi Ji simple columnar epithelium K: Goblet cell L: Microuilli Mcrypt with mulus Mucosoflar N: 0: Simple Columnar Igoblet P: Identify the structure. A typical leaf consists of a lamina (the broad part of the leaf, also called the blade) and a petiole (the stalk that attaches the leaf to a stem). Suggest Corrections. ( ˈpɛtɪˌəʊl) n. Introduction. Axis formation is a fundamental issue in developmental biology. Family: Araceae. Intercellular spaces. circular in B. e. 4 Types of Leaves. Interpetiolar: Present in between the petioles of opposite or whorled leaves, e. The capacity to adjust to changes in the environment is a fundamental property of living organisms. Understanding the value of an effective onboarding process, we've released a new video guide to help you seamlessly set up your Petiole Pro account and explo. Of. and blade morphogenesis, consistent with the 19th-centuryviewofhomology(Fig. The borer larvae remain in the portion of the stem left on the tree. The petiole is a stem that attaches the leaf blade to the main stem of the plant. Oblong to ovate leaves are opposite, simple, ½ to 2 inches long, glossy, with a short petiole. , What substances move down in. Grape growers rely on tissue tests of leaf blades or petioles for routine monitoring of vine nutritional health and for diagnosing potential nutrient deficiency or toxicity. The LEAFY PETIOLE (LEP) gene is located close to the right border of. Meaning of pipole. The blade is broadly cordate, 15 –30 cm × 13 –28 cm and presents four to six pairs of secondary nerves. 4. 4. M The maple petiole borer is an introduced species that has extended its range from the northeastern states to the Great Lakes area and the Midwest. Petiole (insect anatomy), the narrow waist of some hymenopteran insects. Collectively, they are called "stone fruits" because they have fleshy fruits with a single, large seed inside. Internal Structure 4. though there may be another method. Background and aims: Petioles are important plant organs connecting stems with leaf blades and affecting light-harvesting ability of the leaf as well as transport of water, nutrients and biochemical signals. [3] [4] Outgrowths appearing on each side of the. 5 m (4 ft) tall, with thick shoots from a large corm; slender stolons also often produced, along with offshoot corms. Examples of how to use “petiole” in a sentence from Cambridge Dictionary. (Heynh), we show that enhancement of petiole el. Philodendron Fuzzy Petiole cutting. However, the composition, content distribution, and mechanisms of accumulation of metabolites in different-colored petioles remain elusive. 2,108 sq. Petiole length (A and C) and growth rates (B and D) of Arabidopsis (Col-0)Šta da jedem posle vadjenja zuba? Jedite meku ili tečnu hranu bogatu belančevinama. A curling tendril. There are no species native to the new wold tropics. The leaves of Nangaritense can grow up to 12 inches in length, while the leaves of Fuzzy Petiole Philodendron only grow to be about 6 inches in length. SOLD APR 27, 2023. Informational table showing disease name, symptoms, pathogen/cause, and management of Spathiphyllum diseases. Shandon Microtome was used for petiole histological preparations. We i. It is the green, flat surface of the leaves. Differential changes in osmotic potential in different parts of the pulvinus have been used to explain the movements ( Carlson, 1973; Gorton, 1987 ). 2 13. The code shown below is from the data file of Pitipole, a custom Pokémon that we have created to be Tentaquil's pre-evolution, rather than Tentaquil as we want Tentaquil to be the final evolution. The coarse teeth of dentate margins project at right angles, while those of serrate margins point. Objectives: To compare the clinical outcomes of patients with prophylactic petiole suspension (PPS) at the time of laryngofissure and patients without PPS. To do the test, collect 15 to 20 petioles from the area of interest. This main stalk or stem arises from the main stem and holds several pedicels. Definition of pigpile in the Definitions. Petiole (insect anatomy) The sand wasp Ammophila sabulosa has an exceptionally long petiole. 5 billion nationwide in potato receipts in 2021. Fifty-seven species of P. The snake plant (Sansevieria), a monocot, can be propagated by cutting the long leaves into 3- to 4-inch pieces. Baby leaves, the ones that grow from the top of the mature mother-plant, usually have a red petiole. Stipule morphology is a classical botanical key character used in plant identification. 3. However, it may be available for a few. The leaves are alternate (the petiole enclosing an infrapetiolar bud), simple, palmately lobed, stipulate (stipules usually encircling twig), deciduous, with stellate trichomes and usually palmately netted venation. No control is necessary. When 1. Stipules are considered part of the anatomy of the leaf of a typical flowering plant, although in many species they may be inconspicuous —or sometimes entirely absent, and the leaf is then termed exstipulate. GWAS for LPA was performed and selected using Q and Q + K models, which are the GLM and MLM model, respectively (Li et al. ) consisting of 44 species and two varieties (Gavade et al. axil. , 1998). Palm leaf diseases caused by Pestalotia are the same as those caused by Pestalotiopsis. Fig. (Botany) the stalk by which a leaf is attached to the rest of the plant. The crop's high nutrient demand coupled with low. ( ˈpɛtɪˌəʊl) n. a–c Front, side, ventral and opened views of WT (a) and two independent TfBOP2-Cas9 lines: tfbop2-2 (b) and tfbop2-5 (c). 50 mg/1 BAP + 0. , was found to be stimulated by several types of root stress. See examples of PETIOLE used in a sentence. Soil waterlogging, a widespread abiotic stress worldwide, can reduce crop production by 20–50% or more, depending on plant growth stage and duration and intensity of waterlogging (Bertholdsson 2013; Solaiman et al. In addition, Philodendron nangaritense’s leaves are more oblong in shape, while fuzzy Petiole’s leaves are more heart-shaped. 1. Petiole rot is a very serious disease of hosta caused by the fungus Sclerotium rolfsii var. 39 × 10 −4) were detected in the WH and SJZ environments, respectively (Table 2 and Table S2). Plant tissue testing is the preferred method of monitoring the nutritional health of vineyards. The leaf blade is obovate, 5–10 cm×2–5 cm, glossy, acute at the base, round or acute at the apex, and with inconspicuous secondary nerves. 4. …This study was carried out to investigate the responses of cyclamen to gibberellic acids (GAs) and GA biosynthesis inhibitors under different temperature and light intensity during different period, and then to examine the changes in GA level and sensitivity to GA under these environmental conditions. dýně, podzim, sklizeň, squash, říjen, díkůvzdání, oranžový, zeleniny, předvečer Všech svatých, oranžová barva, zemědělství, sezóna, Příroda. 1. 1 Based on Blade. The Kieffer pear and the Peace Rose are two examples of. About 10 days after leaf drop, the rest of the stem falls to the ground. It was found that. Pholem — Photosynthate-conducting tissue. This app is built with sustainable agriculture in mind and. T. 4. A leaf node is a point on the stem where leaves are attached. In the unlikely case of a deficiency in soil and vines, first, adjust soil pH to the correct range. Use a sharp knife or garden shears to make a clean cut just below a leaf node. A pest that can also attack agricultural crops, Potato leafhoppers can be pests of maples in nursery production. Read More. Leaf abscission process affects leaf retention. Palmate. We investigated how the infestation by the petiole. pedicel. Petiole of Eichhornia sp. Leaf part. The full webinar can be viewed below. Leaf development in Arabidopsis thaliana is controlled by genes like BLADE ON PETIOLE1(BOP1), which prevent the development of ectopic. number of cuttings per plant is fewer than could be produced by seed. Palm leaf diseases caused by Pestalotia are the same as those caused by Pestalotiopsis. A compound leaf is made up of leaflets which are distributed along the leaf rachis. Figure 4. Indoor plants in small pots will need to be watered more frequently! Water your Fuzzy Petiole Philodendron more often in the growing season (spring and summer, into early fall) and reduce the frequency during winter. As sessile organisms, plants do not possess the nerves and muscles that facilitate movement in most animals. John Kress1 ABSTRACT Heliconia, a primarily neotropical genus, is represented in the Old World tropics by six species andstipe: [noun] a usually short stalk of a plant or fungus: such as. Petiole definition: . ADVERTISEMENTS: In this article we will discuss about:- 1. As a Swiss boutique asset manager, we harness our exclusive network to build bespoke portfolios in private markets. 2: A leaf is usually composed of a blade and a petiole. Prickle – A sharpspongy翻译：海绵似的；柔软易吸水的；湿软的。了解更多。We would like to show you a description here but the site won’t allow us. The many degrees of compoundness in highly elaborated. Typically, these soils are sandy loams or loamy sands, low in native fertility, and quite acid. Dicot leaves have larger intercellular spaces as the cells are loosely packed. It is suitable for investors who want ease of execution by prefunding their private markets portfolios. Cherries and plums belong to a genus that includes apricots, peaches, nectarines, and almonds. 9. 1612 Oak Reserve Dr, KISSIMMEE, FL 34744. Pronunciation of pétiole with 3 audio pronunciations, 4 synonyms, 1 meaning, 14 translations and more for pétiole. This income solution, targeting a minimum net cash distribution of 8% to 10% annually paid quarterly, is a direct investment suitable for investors who would like to participate in the private markets asset class and want regular distributions. A stem is the plant's main support, base or central axis and its roots anchor the plant either to the ground, a tree or to a rock. Introduction. Leaves are generally composed of a few main parts: the blade and the petiole. To learn more, check out our interest rate calculator. 30–1. Materials and Methods. The study investigated the leaf architecture and petiole anatomy of eight Dipterocarpus (Dipterocarpaceae) species growing in Mount Makiling Forest Reserve (MMFR) in the. 00 (51. Petiole helps to hold the leaf blade to the sunlight. Naji Nehme, CFA. Tentaquil and its pre-evo, Pitipole, will rarely spawn in watery areas of lush caves biomes. Abstract. Subsequent growth and differentiation result in establishment of the axillary meristem and abscission zone (AZ) along the proximal-distal axis of the leaf axil, yet the molecular mechanisms that regulate these. The BLADE-ON-PETIOLE (BOP) genes of Arabidopsis (Arabidopsis thaliana) have been shown to play an essential role in floral abscission by specializing the abscission zone (AZ) anatomy. Petiole may refer to: Petiole (botany), the stalk of a leaf, attaching the blade to the stem.