Results 21 to 30 of about 93,335 (307)

Effect of Salicylic Acid Pre-Treatment after Long-Term Desiccation in the Moss Syntrichia ruralis (Hedw.) Web. and Mohr

open access: yesPlants, 2020
The main objective of this research was to examine the effects of exogenous salicylic acid (SA) and to study the seasonal variation of the chlorophyll a fluorescence parameters and antioxidant enzymatic activities in desiccation-tolerant moss species ...
Ruchika   +2 more
doaj   +1 more source

Physiological Responses of Cucumber Seedlings to Different Supplemental Light Duration of Red and Blue LED

open access: yesFrontiers in Plant Science, 2021
Normal development of plants is inhibited by inadequate light in winter in greenhouses in Northwest China. Growth lamps, using light-emitting diodes (LEDs) with red blue light (7R2B), were used to supplement daylight for 1, 2, and 3 h.
Shuya Wang   +9 more
doaj   +1 more source

Occurrence of Far-Red Light Photoacclimation (FaRLiP) in Diverse Cyanobacteria

open access: yesLife, 2014
Cyanobacteria have evolved a number of acclimation strategies to sense and respond to changing nutrient and light conditions. Leptolyngbya sp. JSC-1 was recently shown to photoacclimate to far-red light by extensively remodeling its photosystem (PS) I ...
Fei Gan, Gaozhong Shen, Donald A. Bryant
doaj   +1 more source

Effect of Red and Blue Light on Cucumber Seedlings Grown in a Plant Factory

open access: yesHorticulturae, 2023
Light-emitting diodes (LEDs) have been regarded as the best artificial source of light for a plant factory. However, the effect of light quality on seedling production in such environments requires further study. On the basis of the practical application
Dezhi Jin   +9 more
doaj   +1 more source

Conservation of core complex subunits shaped the structure and function of photosystem I in the secondary endosymbiont alga Nannochloropsis gaditana [PDF]

open access: yes, 2017
Photosystem I (PSI) is a pigment protein complex catalyzing the light-driven electron transport from plastocyanin to ferredoxin in oxygenic photosynthetic organisms.
Alboresi   +87 more
core   +3 more sources

The trend of changes in chlorophyll fluorescence parameters in two Vicia faba ecotype during freezing stresses [PDF]

open access: yesپژوهش‌های حبوبات ایران, 2018
Introduction Freezing tolerance is an important factor determining natural geographic distribution of plant species as well as growth and yield of many crop plants.
Jafar Nabati   +3 more
doaj   +1 more source

Salt stress affects mineral nutrition in shoots and roots and chlorophyll a fluorescence of tomato plants grown in hydroponic culture

open access: yesJournal of Plant Interactions, 2020
Salt stress is considered one of the major constraints limiting plant growth. Here, tomato plants were grown in hydroponic culture with two salt sodium chloride concentrations (S1 = 2.8 dS m−1 and S2 = 4.8 dS m−1).
Aicha Loudari   +7 more
doaj   +1 more source

Different adaptation strategies of two citrus scion/rootstock combinations in response to drought stress [PDF]

open access: yes, 2017
Scion/rootstock interaction is important for plant development and for breeding programs. In this context, polyploid rootstocks presented several advantages, mainly in relation to biotic and abiotic stresses.
Bonatto, Diego   +6 more
core   +7 more sources

Silicon improves the photosynthetic performance of black pepper plants inoculated with Fusarium solani f. sp. piperis

open access: yesPhotosynthetica, 2020
This study evaluated the effect of silicon (Si)-supplementation in controlling the fusariosis in two Piper nigrum cultivars (Bragantina and Kottanadan).
V. DꞌADDAZIO   +11 more
doaj   +1 more source

Analysis of initial chlorophyll fluorescence induction kinetics in chloroplasts in terms of rate constants of donor side quenching release and electron trapping in photosystem II [PDF]

open access: yes, 2008
The fluorescence induction F(t) of dark-adapted chloroplasts has been studied in multi-turnover 1 s light flashes (MTFs). A theoretical expression for the initial fluorescence rise is derived from a set of rate equations that describes the sequence of ...
Vredenberg, W.J.
core   +2 more sources

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