Results 1 to 10 of about 32,535 (154)

NTRC Effects on Non-Photochemical Quenching Depends on PGR5 [PDF]

Antioxidants, 2021
Non-photochemical quenching (NPQ) protects plants from the detrimental effects of excess light. NPQ is rapidly induced by the trans-thylakoid proton gradient during photosynthesis, which in turn requires PGR5/PGRL1-dependent cyclic electron flow (CEF ...
Belen Naranjo, Jan-Ferdinand Penzler, Thilo Rühle, Dario Leister   +3 more
doaj   +3 more sources

Canopy-Level Photochemical Reflectance Index from Hyperspectral Remote Sensing and Leaf-Level Non-Photochemical Quenching as Early Indicators of Water Stress in Maize

Remote Sensing, 2017
In this study, we evaluated the effectiveness of photochemical reflectance index (PRI) and non-photochemical quenching (NPQ) for assessing water stress in maize for the purpose of developing remote sensing techniques for monitoring water deficits in ...
Jing Chen, Bin Chen, Holly Croft
exaly   +3 more sources

Site, trigger, quenching mechanism and recovery of non-photochemical quenching in cyanobacteria: recent updates [PDF]

Photosynthesis Research, 2018
Cyanobacteria exhibit a novel form of non-photochemical quenching (NPQ) at the level of the phycobilisome. NPQ is a process that protects photosystem II (PSII) from possible highlight-induced photo-damage. Although significant advancement has been made in understanding the NPQ, there are still some missing details.
Ravi R Sonani, Rajesh P Rastogi, Richard J Cogdell   +2 more
exaly   +3 more sources

On the relationship between non-photochemical quenching and photoprotection of Photosystem II

Biochimica Et Biophysica Acta - Bioenergetics, 2012
Non-photochemical quenching (NPQ) of chlorophyll fluorescence is thought to be an indicator of an essential regulation and photoprotection mechanism against high-light stress in photosynthetic organisms. NPQ is typically characterized by modulated pulse fluorometry and it is often assumed implicitly to be a good proxy for the actual physiological ...
Petar Lambrev, Yuliya A Miloslavina, Peter Jahns   +2 more
exaly   +3 more sources

Phothochemical quenching is indicative of ionic stress on ‘Tahiti’ acid lime grafted on citrus genotypes [PDF]

Revista Brasileira de Engenharia Agrícola e Ambiental, 2021
The objective was to study the chlorophyll ‘a’ fluorescence and the photochemical quenching from ‘Tahiti’ acid lime grafted in new citrus genotypes under irrigation with three types of water during prefloration phase of the first year of cultivation ...
Tainá A. da Silva, Marcos E. B. Brito, Ivens H. da Conceição, Ericlis D. S. Nunes, Darvina S. Souza, Gabriel O. Martins   +5 more
doaj   +1 more source

Resistance of Primary Photosynthesis to Photoinhibition in Antarctic Lichen Xanthoria elegans: Photoprotective Mechanisms Activated during a Short Period of High Light Stress

Plants, 2023
The Antarctic lichen, Xanthoria elegans, in its hydrated state has several physiological mechanisms to cope with high light effects on the photosynthetic processes of its photobionts.
Miloš Barták, Josef Hájek, Mehmet Gökhan Halıcı, Michaela Bednaříková, Angelica Casanova-Katny, Peter Váczi, Anton Puhovkin, Kumud Bandhu Mishra, Davide Giordano   +8 more
doaj   +1 more source

Transcriptome and physiology analysis reveal key players of the shade-tolerant species Panax notoginseng in photosynthetic performance under both high and low light regimes

Journal of Plant Interactions, 2022
The present study aimed to understand the molecular mechanism underlying the light-induced depression of photosynthetic capacity in a typically shade-tolerant species Panax notoginseng grown under different light intensities.
Jin-Yan Zhang, Shuang-Bian Kuang, Zhu Cun, Sheng-Pu Shuang, Zhen-Gui Meng, Long-Gen Li, Jun-Wen Chen   +6 more
doaj   +1 more source

Disentangling the sites of non-photochemical quenching in vascular plants [PDF]

Nature Plants, 2019
In nature, plants experience large fluctuations in light intensity and they need to balance the absorption and utilization of this energy appropriately. Non-photochemical quenching (NPQ) is a rapidly switchable mechanism that protects plants from photodamage caused by high light exposure by dissipating the excess absorbed energy as heat.
Lauren Nicol, Wojciech J. Nawrocki, Roberta Croce   +2 more
openaire   +2 more sources

Temperature mapping of non-photochemical quenching in Chlorella vulgaris

Photosynthesis Research, 2022
AbstractLight intensity and temperature independently impact all parts of the photosynthetic machinery in plants and algae. Yet to date, the vast majority of pulse amplitude modulated (PAM) chlorophyll a fluorescence measurements have been performed at well-defined light intensities, but rarely at well-defined temperatures.
Andrei Herdean, Christopher Hall, David J. Hughes, Unnikrishnan Kuzhiumparambil, Bernardo Campos Diocaretz, Peter J. Ralph   +5 more
openaire   +2 more sources

Seasonality and Small Spatial-Scale Variation of Chlorophyll a Fluorescence in Bryophyte Syntrichia ruralis [Hedw.] in Semi-Arid Sandy Grassland, Hungary

Plants, 2020
Bryophytes face challenges due to global climate change which is leading to in-depth research in monitoring and studying their photosynthetic activity. The aim of this preliminary experiment was to study the seasonal variation trend in the chlorophyll a ...
Ruchika, Zsolt Csintalan, Evelin Ramóna Péli   +2 more
doaj   +1 more source