Results 51 to 60 of about 20,877 (237)

Pathways of Photosynthesis in Non-Leaf Tissues

open access: yesBiology, 2020
Plants have leaves as specialised organs that capture light energy by photosynthesis. However, photosynthesis is also found in other plant organs. Photosynthesis may be found in the petiole, stems, flowers, fruits, and seeds.
Robert J. Henry   +2 more
doaj   +1 more source

Anatomy and Biomechanics of Peltate Begonia Leaves—Comparative Case Studies

open access: yesPlants, 2022
Plants are exposed to various external stresses influencing physiology, anatomy, and morphology. Shape, geometry, and size of shoots and leaves are particularly affected.
Annabell Rjosk   +2 more
doaj   +1 more source

The Structure of Petioles in Pteris (Pteridaceae)

open access: yesAmerican Fern Journal, 2012
Abstract We studied the petiole structure of twelve American species of Pteris: P. ciliaris, P. cretica, P. deflexa, P. denticulata, P. ensiformis, P. exigua, P. inermis, P. multifida, P. mutilata, P. quadriaurita, P. tristicula and P. vittata, using both light and scanning electron microscopy. We found that petioles are characterized externally by the
Martínez, Olga Gladys, Vilte, Ignacio
openaire   +2 more sources

The optimized shape of a leaf petiole [PDF]

open access: yesWIT Transactions on Ecology and the Environment, Vol 87, 2006
A plant leaf is generally composed of a petiole and a leaf blade. The petiole connects the leaf blade to the plant stem and, from a structural viewpoint, it resembles a cantilever beam. Petiole design is driven by the minimum use of material to withstand a combined torsion and bending load.
D. Pasini, V. Mirjalili
openaire   +1 more source

Structural and torsional properties of the Trachycarpus fortunei palm petiole [PDF]

open access: yes, 2006
The Trachycarpus fortunei palm is a good example of a palm with a large leaf blade supported by a correspondingly large petiole. The way in which the material and functional properties of the petiole interact is analysed using engineering and botanical ...
Cutler, DF   +7 more
core   +1 more source

Holocene vegetation change and fire–plant diversity shifts in Mediterranean France

open access: yesJournal of Quaternary Science, EarlyView.
ABSTRACT Changes in fire activity are recognized as a major threat to biodiversity and vegetation communities across the Mediterranean Basin. However, long‐term fire–vegetation interactions remain poorly investigated. Here, we combine a high‐resolution charcoal record with pollen data from the “Étang des Aulnes” lake (southern France) to reconstruct ...
Cécile Latapy   +13 more
wiley   +1 more source

Anisota virginiensis (Saturniidae: Ceratocampinae) applying saliva to a petiole stub of Quercus shumardii (Fagaceae).

open access: yes, 2022
The final instar larva did not cut completely through the petiole; the distal portion can be seen dangling from the petiole stub. (MP4)
David E. Dussourd (12251377)
core   +1 more source

Integrated characterization of Greek fennel genotypes through morpho‐agronomical characteristics, yield components and phytochemical compounds

open access: yesJSFA reports, Volume 5, Issue 3, Page 91-103, March 2025.
Abstract Background Fennel (Foeniculum vulgare Mill.) is a widely cultivated vegetable and aromatic‐medicinal plant. In this research, field studies assessed 12 fennel genotypes of diverse origin, comprising 10 Greek accessions and two European commercial varieties, focusing on their morpho‐agronomical traits, phenolic compounds and antioxidant ...
Kalliopi I. Kadoglidou   +6 more
wiley   +1 more source

Vascularização foliar e anatomia do pecíolo de Melastomataceae do cerrado do Estado de São Paulo, Brasil Leaf vasculature and petiole anatomy of Melastomataceae from the cerrado of the São Paulo State, Brazil

open access: yesActa Botânica Brasílica, 2004
Foram estudados o pecíolo e a vascularização foliar de 22 espécies de Melastomataceae do cerrado do Estado de São Paulo. A análise da vascularização mostrou que, embora venação acródroma seja constante para todos os representantes, determinados ...
Cláudia dos Reis   +2 more
doaj   +1 more source

Gymnema sylvestre: Bioactive constituents, health benefits, and emerging applications in nutraceuticals and functional foods

open access: yesJSFA reports, EarlyView.
Abstract Gymnema sylvestre (Retz.) R.Br. ex‐Schult., commonly known as “gurmar” or “sugar destroyer,” belongs to the Apocynaceae family and is traditionally used in Ayurveda for diabetes management. This review synthesizes ethnomedicinal evidence with contemporary pharmacological studies, to evaluate the therapeutic properties and mechanistic actions ...
Faiza Saeed   +5 more
wiley   +1 more source

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