Results 41 to 50 of about 68,939 (291)

A Deep Learning-Based Method for Automatic Assessment of Stomatal Index in Wheat Microscopic Images of Leaf Epidermis

open access: yesFrontiers in Plant Science, 2021
The stomatal index of the leaf is the ratio of the number of stomata to the total number of stomata and epidermal cells. Comparing with the stomatal density, the stomatal index is relatively constant in environmental conditions and the age of the leaf ...
Chuancheng Zhu   +11 more
doaj   +1 more source

The early evolution of land plants, from fossils to genomics: a commentary on Lang (1937) ‘On the plant-remains from the Downtonian of England and Wales' [PDF]

open access: yes, 2015
© 2015 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.
Burgess ND   +12 more
core   +2 more sources

Hormonal and environmental signals guiding stomatal development

open access: yesBMC Biology, 2018
Stomata are pores on plant epidermis that facilitate gas exchange and water evaporation between plants and the environment. Given the central role of stomata in photosynthesis and water-use efficiency, two vital events for plant growth, stomatal ...
Xingyun Qi, Keiko U. Torii
doaj   +1 more source

Intensity of Vascular Streak Dieback in Different Cocoa Clones and Various Agro-climatic Conditions [PDF]

open access: yes, 2017
Vascular streak dieback (VSD) is one of the main diseases on cocoa. This disease can produce a heavy damage in susceptible plants. Agro-climatic condition influences the VSD disease severity level.
Anita-Sari, I. (Indah)   +6 more
core   +2 more sources

Comparative micromorphological study of wild and micropropagated Dioscorea bulbifera Linn.

open access: yesAsian Pacific Journal of Tropical Biomedicine, 2014
Objective: To study the leaf epidermis of wild and micropropagated Dioscorea bulbifera Linn. (D. bulbifera) in order to document useful diagnostic features that may be employed for correct crude drug identification and to clear any taxonomic ...
Mubo A. Sonibare, Adedapo A. Adeniran
doaj   +1 more source

Effect of (Changes in) Air Humidity on Transpiration and (Adaptation of) Stomatal Closure of Tradescantia Leaves during Water Stress [PDF]

open access: yes, 2009
This paper summarises our recent research on the physiological effects of prolonged high RH during growth on stomatal function and we discuss possibilities that arise from this work for reducing postharvest quality problems in cut flowers.
Harbinson, J.   +2 more
core   +2 more sources

Sucrose-induced stomatal closure is conserved across evolution. [PDF]

open access: yesPLoS ONE, 2018
As plants evolved to function on land, they developed stomata for effective gas exchange, for photosynthesis and for controlling water loss. We have recently shown that sugars, as the end product of photosynthesis, close the stomata of various angiosperm
Jayaram Kottapalli   +7 more
doaj   +1 more source

Anthocyanins in relation to nutrients, stomatal density, and yield of purple lettuce (Lactuca sativa L.) fertilized with compost based on bleaching earth [PDF]

open access: yesBrazilian Journal of Biology
In Peru, in recent years, the gastronomic boom has stood out globally, which has increased the production of edible oil in the oil industries, generating too much bleaching land.
D. D. Cruz Nieto   +15 more
doaj   +1 more source

Conversion of Thermal Energy to Gas Flow Kinetic Energy in the Bionic Leaf Stomata

open access: yesAgronomy, 2022
In the technical field, the potential energy of gas under pressure is converted into mechanical kinetic energy by means of special complex channels. Leaf stomata perform a similar function in plant leaves.
Tomas Ūksas   +3 more
doaj   +1 more source

Foliar lead uptake by lettuce exposed to atmospheric fallouts [PDF]

open access: yes, 2010
Metal uptake by plants occurs by soil−root transfer but also by direct transfer of contaminants from the atmosphere to the shoots. This second pathway may be particularly important in kitchen gardens near industrial plants.
Alexander P.   +44 more
core   +3 more sources

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