Climate change has negatively affected agriculture worldwide, including soybean production. Studies have shown that rising temperatures and extreme weather events like droughts floods significantly reduce yields. Developing flood-tolerant genotypes is crucial for ensuring food security. Conventional breeding programs are limited by laborious imprecise visual rating methods flooding tolerance id...

Energy-dependent (qE) non-photochemical quenching (NPQ) thermally dissipates excess absorbed light energy as a protective mechanism to prevent the over reduction of photosystem II and the generation of reactive oxygen species (ROS). The xanthophyll cycle, induced when the level of absorbed light energy exceeds the capacity of photochemistry, contributes to qE. In this work, we show that ethylen...

In contrast to the function of reactive oxygen species, calcium, hormones and small RNAs in systemic signaling, systemic electrical signaling in plants is poorly studied and understood. Pulse amplitude-modulated Chl fluorescence imaging and surface electrical potential measurements accompanied by pharmacological treatments were employed to study stimuli-induced electrical signals in leaves from...

Photosynthetic organisms have to tolerate rapid changes in light intensity, which is facilitated by non-photochemical quenching (NPQ) and involves modification of energy transfer from light-harvesting complexes (LHC) to the photosystem reaction centres. NPQ includes dissipating excess light energy to heat (qE) and the reversible coupling of LHCII to photosystems (state transitions/qT), which ar...

To prevent photo-oxidative damage to the photosynthetic membrane in strong light, plants dissipate excess absorbed light energy as heat in a mechanism known as non-photochemical quenching (NPQ). NPQ is triggered by the trans-membrane proton gradient (ΔpH), which causes the protonation of the photosystem II light-harvesting antenna (LHCII) and the PsbS protein, as well as the de-epoxidation of t...

Drought stress is one of the major threats to rice production. The weakening leaf photosynthesis due drought main reason for reduction grain yield, but its mechanism still obscure. objectives this study were reveal physiological affecting photosynthetic capacity and yield. Pot experiments conducted with drought-tolerant cultivars Hanyou113 (HY113) Zhonghan3 (ZH3) drought-sensitive cultivar Huan...

Abstract Soybean was planted in clay pots with living mulch of white clover (CL) or shredded paper (SP). Soil moisture the individually controlled at five levels from around 20% volumetric soil water content (SWC) to near-saturated, by monitoring SWC every morning and irrigating intermittently. This study focussed on growth period soybean when plant height LAI reached maximum. The lower evapotr...

Basil (Ocimum basilicum L.) is one of the most important medicinal and aromatic plants. Light intensity an indispensable factor for plants due to its effect on photosynthesis physiological processes. Here, we investigated impact light intensities harvesting times green purple basil. The experiment involved subjecting three different levels sunlight 12 days: complete—100%, 50%, 30%—sunlight. In ...

Stay green is the plant’s ability to sustain photosynthetically functional leaf area for longer periods, even with excessive water stress. This study was done understand gene action that controlled inheritance of stay trait general objective contributing breeding more drought tolerant maize varieties. 10 F1 hybrids from crosses between highly performing and least inbred lines as regards s...

Photoinhibition is light-induced inactivation of PSII. Hypotheses about the photoreceptor(s) of photoinhibition include the Chl antenna of PSII, manganese of the oxygen-evolving complex (OEC), uncoupled Chl and iron-sulfur centres. We measured the action spectrum of photoinhibition in vivo from wild-type Arabidopsis thaliana L. and from the npq1-2 and npq4-1 mutants defective in non-photochemic...