Results 1 to 10 of about 13,718 (195)

How much heat does non-photochemical quenching produce? [PDF]

Frontiers in Plant Science
Non-photochemical quenching (NPQ) is a protective mechanism used by plants to safely dissipate excess absorbed light energy as heat, minimizing photo-oxidative damage. Although the importance of NPQ as a safety valve for photosynthesis is well-known, the
Aoi Murakami, Aoi Murakami, Aoi Murakami, Eunchul Kim, Eunchul Kim, Jun Minagawa, Jun Minagawa, Kenji Takizawa, Kenji Takizawa, Kenji Takizawa   +9 more
doaj   +4 more sources

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   +2 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 ...
Shuren Chou, Jing M. Chen, Hua Yu, Bin Chen, Xiuying Zhang, Holly Croft, Shoaib Khalid, Meng Li, Qin Shi   +8 more
doaj   +3 more sources

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

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

Changes in Photo-Protective Energy Dissipation of Photosystem II in Response to Beneficial Bacteria Consortium in Durum Wheat under Drought and Salinity Stresses

Applied Sciences, 2020
The present research aimed at evaluating the harmless dissipation of excess excitation energy by durum wheat (Triticum durum Desf.) leaves in response to the application of a bacterial consortium consisting of four plant growth-promoting bacteria (PGPB).
Mohammad Yaghoubi Khanghahi, Sabrina Strafella, Carmine Crecchio   +2 more
doaj   +1 more source

The effects of increasing salinity levels on Sulla carnosa photosynthesis are mainly of stomatal nature

Journal of Oasis Agriculture and Sustainable Development, 2023
Sulla carnosa Desf. plants were subjected to 0, 100, 200, and 300 mM NaCl for 40 days. Leaf and stem growth as well as root and leaf water contents were not affected even at 300 mM NaCl, confirming the halophytic nature of this species.
Ellouzi Hasna , Mokded Rabhi
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Characteristics of gas exchange and chlorophyll fluorescence in red and green leaves of Begonia semperflorens

Biologia Plantarum, 2011
To determine the effects of leaf colour on gas exchange and chlorophyll fluorescence, two genotypes of Begonia semperflorens with green leaves or red leaves were compared.
K. M. Zhang, X. M. Wang, J. X. Cui, J. O. Ogweno, K. Shi, Y. H. Zhou, J. Q. Yu   +6 more
doaj   +1 more source

Effects of spine-shading on aspects of photosynthesis for three cactus species

Botan‪ical Sciences, 2016
We evaluated the effect of spine removal on three cactus species varying in spine-shading of stems. Turbinicarpus schmiedickeanus showed the greater spine shading (c. 61 %), followed by Mammillaria zephyranthoides (43 %), and Echinocactus platyacanthus (
Edilia de la Rosa-Manzano, Joel Flores, Pablo Delgado-Sánchez   +2 more
doaj   +1 more source