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524 results for “petiole”
Ostrya virginiana (Betulaceae) - twig - orientation of petioles
Image of Ostrya virginiana (Betulaceae) - twig - orientation of petioles
Simmondsia chinensis (Simmondsiaceae) - twig - orientation of petioles
Image of Simmondsia chinensis (Simmondsiaceae) - twig - orientation of petioles
Petiole anatomy of some species of Bauhinia L. sensu lato (Leguminosae Juss.) occurring in India
<p>The petiole is a vital part of the leaf that acts as a bridge between the lamina and stem or branch for the transport of photosynthate, minerals, nutrients and provide flexible mechanical support to the lamina. Its anatomy remains unique and species-specific. Therefore, twelve species of <i>Bauhinia </i>sensu lato were investigated histologically in the present study. The disparities in the petiole outline, structure and composition of secondary xylem and presence of cell inclusions can be wisely employed for species identification. Conducting elements of the xylem and phloem were arranged as irregularly distributed individual vascular bundles in <i>Schnella guianensis.</i> Several vascular bundles joined to form a double ring of the xylem and phloem in <i>Piliostigma</i><i> foveolatum</i>, <i>P.</i> <i>malabaricum</i>, <i>P</i>. <i>racemosum</i>, two species of <i>Phanera </i>(<i>P</i>. <i>retusa</i>, <i>P</i>. <i>vahlii</i>) and <i>Bauhinia</i> <i>variegata</i> while in the remaining species, it remained as a single ring. Other features of taxonomic importance are xylem ring that can be circular and complete and if incomplete crescent-shaped or "U" shaped, arrangement of cortical bundles and their position, accumulation of tannin etc. Deposition of tannin was observed in the pith, xylem and phloem parenchyma of <i>Piliostigma</i><i> foveolatum</i>, <i>P</i>. <i>malabaricum</i>, <i>Bauhinia</i> <i>tomentosa</i> and <i>B</i>. <i>variegata </i>and in the pith and phloem parenchyma of <i>Phanera</i> <i>phoenicea</i>, <i>Piliostigma racemosum</i> and <i>Phanera</i> <i>scandens.</i> Tannin was found absent in <i>B</i>. <i>acuminata</i> and <i>B</i>. <i>purpurea</i>. All these features played important role in species recognition. Structural details of the petiole are described in detail for all the investigated species using standard anatomical methods and light microscopy. Findings revealed that anatomical characteristics of the petiole are of taxonomic value for this genus and can be valuable for species identification and classification.</p>
Hamamelis vernalis (Hamamelidaceae) - twig - orientation of petioles
Image of Hamamelis vernalis (Hamamelidaceae) - twig - orientation of petioles
Zanthoxylum americanum (Rutaceae) - twig - orientation of petioles
Image of Zanthoxylum americanum (Rutaceae) - twig - orientation of petioles
Fig. 6 Drosera elongata Exell & J.R.Laundon. a. Leaf shape with a pilose petiole and a in Synopsis of the genus Drosera (Droseraceae) in Angola and the Democratic Republic of the Congo
Fig. 6 Drosera elongata Exell & J.R.Laundon. a. Leaf shape with a pilose petiole and a relatively small, elliptic lamina; b. general morphology: very long stems with horizontal leaves and laterally arising, pubescent inflorescences; c. distribution according to the literature; d. province map of Angola and DRC with localities of examined herbarium specimens; e. pollen in tetrads with echinate, conical sculpture elements in low to medium density; f. dry seed 450 × 140 µm. — Scale bars: a = 1 cm; b = 2 cm; e = 10 µm; f = 20 µm.
Petiole anatomy of some species of Bauhinia L. sensu lato (Leguminosae Juss.) occurring in India
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Data from: Petiolate wings: effects on the leading-edge vortex in flapping flight
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AT-hook transcription factors repress petiole growth by antagonizing PIF4 [RNA-seq]
GEO Series GSE122454. Arabidopsis thaliana. 12 samples. Type: Expression profiling by high throughput sequencing.
VAL1/HSI2 promotes Arabidopsis flowering by repressing the organ boundary genes BLADE ON PETIOLE 1 (BOP1) and BOP2
GEO Series GSE272866. Arabidopsis thaliana. 6 samples. Type: Expression profiling by high throughput sequencing.
AT-hook transcription factors repress petiole growth by antagonizing PIF4
GEO Series GSE122456. Arabidopsis thaliana. 15 samples. Type: Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing.
Local light signalling at the leaf tip drives remote differential petiole growth through auxin-gibberellin dynamics
GEO Series GSE218944. Arabidopsis thaliana. 204 samples. Type: Expression profiling by high throughput sequencing.
AT-hook transcription factors repress petiole growth by antagonizing PIF4 [ChIP-seq]
GEO Series GSE122455. Arabidopsis thaliana. 3 samples. Type: Genome binding/occupancy profiling by high throughput sequencing.
Expression data from Arabidopsis petioles in early stage dense canopy
GEO Series GSE39010. Arabidopsis thaliana. 6 samples. Type: Expression profiling by array.
Transcriptional profiling of leaf blades and petioles subjected to shade avoidance syndrome
GEO Series GSE17845. Arabidopsis thaliana. 18 samples. Type: Expression profiling by array.
FIGURES 1 – 5. Zethus plaumanni, male. 1. Lateral habitus. 2. Head, frontal view. 3. Petiole, lateral view. Arrow indicates lateroventral ridge. 4. Mesoscutum, oblique view. Arrowhead indicates notaulus. 5 in Description of the male, nest architecture and biology notes of Zethus plaumanni Bohart & Stange, 1965 (Hymenoptera, Vespidae) in southern Brazil
FIGURES 1 – 5. Zethus plaumanni, male. 1. Lateral habitus. 2. Head, frontal view. 3. Petiole, lateral view. Arrow indicates lateroventral ridge. 4. Mesoscutum, oblique view. Arrowhead indicates notaulus. 5. Apex of flagellum. Scales: 1.0 mm.
FIGURE 1. Magnolia brunnescens. A. Flowering branch. B. Petioles with stipular and scar. C in Magnolia brunnescens (Magnoliaceae), a new species from Guangxi, China
FIGURE 1. Magnolia brunnescens. A. Flowering branch. B. Petioles with stipular and scar. C. Flower in frontal view. D. Abaxial view of tepals in four whorls, from outer to internal. E. Partly dissected gynoecium with stamens below. F. Stamens. G. Carpels. H. Fruit with dehiscent follicles. I. Seeds.
Figure 64. Petiole, anterior view. A in Beyond the wasp-waist: structural diversity and phylogenetic significance of the mesosoma in apocritan wasps (Insecta: Hymenoptera)
Figure 64. Petiole, anterior view. A, Ycaploca evansi (Scolebythidae); B, Rhysipolis sp. (Braconidae); C, Sparasion formosum (Scelionidae); D, Telenomus podisi (Scelionidae); E, Nasonia vitripennis (Pteromalidae); F, Coccophagus rusti (Aphelinidae). Abbreviations in Appendix 2.
Whole-transcriptome analysis and construction of a leaf and petiole development-related ceRNA regulatory network in baby Chinese cabbage (Brassica campestris L. ssp. pekinensis)
GEO Series GSE218959. Brassica rapa. 6 samples. Type: Expression profiling by high throughput sequencing.
Whole transcriptome analysis of leaves and petioles in Chinese cabbage [circRNA]
GEO Series GSE182325. Brassica rapa. 6 samples. Type: Expression profiling by high throughput sequencing; Non-coding RNA profiling by high throughput sequencing.
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