Results 31 to 40 of about 48,657 (266)

Trellis systems ameliorate heat damage by regulating canopy temperature, photosynthetic efficiency and leaf microstructure of grapevine

open access: yesFrontiers in Plant Science
IntroductionGlobal warming has made heat stress a major constraint on grapevine growth and grape production. This study aimed to evaluate the heat tolerance of three prevalent trellis systems—V-shaped (VT), upward-trained pendulous (U-PT), and H-shaped ...
Ling Luo   +10 more
doaj   +1 more source

Stromule extension along microtubules coordinated with actin-mediated anchoring guides perinuclear chloroplast movement during innate immunity

open access: yeseLife, 2018
Dynamic tubular extensions from chloroplasts called stromules have recently been shown to connect with nuclei and function during innate immunity. We demonstrate that stromules extend along microtubules (MTs) and MT organization directly affects stromule
Amutha Sampath Kumar   +10 more
doaj   +1 more source

The changes of PSII supercomplex stoichiometry in egy1 mutants are related to chlorophyll b deficiency

open access: yesPhotosynthetica, 2021
EGY1 is a chloroplast metalloprotease, the physiological role of which remains elusive. The changes observed in physiology and gene expression in egy1 mutants indicate that lack of the protease leads to yellow-green phenotype, changes in stoichiometry in
M. ADAMIEC   +3 more
doaj   +1 more source

Dual Cytoplasmic and Chloroplastic Mechanisms Fine‐Tune Chloroplast Division through ARC3 Protein Stability

open access: yesAdvanced Science, EarlyView.
ARC3 levels are controlled by cytosolic and chloroplast proteolytic systems. PUB52 mediates ARC3 precursor ubiquitination and degradation in the cytosol, while CLPC1 promotes ARC3 degradation in chloroplasts, where ARC2 protects ARC3 from excessive breakdown. Disrupting these components causes chloroplast division defects, placing them upstream of ARC3.
Yang Yuan   +5 more
wiley   +1 more source

Different possibilities for the formation of complexes of copper and zinc with chlorophyll inside photosynthetic organelles: chloroplasts and thylakoids [PDF]

open access: yesJournal of the Serbian Chemical Society, 2007
The possibility of the formation of copper and zinc complexes with chlorophyll in photosynthetic organelles (chloroplasts) and suborganelles (thylakoids) was studied.
DEJAN MARKOVIC   +2 more
doaj   +3 more sources

Instrumental and Methodological Support for the Diagnostics of Nutritional Requirements of Plants

open access: yesИнженерные технологии и системы, 2022
Introduction. Mineral fertilizers essential for intensive crop production technologies are an expensive and environmentally unsafe resource polluting the soil and agricultural products when applied in excess.
Ivan I. Gureev
doaj   +1 more source

The Spatiotemporal Genetic Architecture of Seed Vigor in Upland Cotton

open access: yesAdvanced Science, EarlyView.
Leveraging the semi‐automated SeedRanger platform, we profiled the germination kinetics of 356 cotton accessions at a 30‐min interval. This high‐throughput phenomic approach delineated a temporal genetic network comprising 541 stage‐specific loci. Crucially, functional validation identified FLA2 as a pivotal, auxin‐modulated regulator that orchestrates
Luyao Wang   +32 more
wiley   +1 more source

Changes in photosynthetic apparatus of tobacco leaves in conditions of virus infection and shortage of nitrogen

open access: yesPlant Protection Science, 2002
Data of the comparative investigation of the viral infection (TMV) and nitrogen starvation in the ratio of chlorophyll a/b, photochemical activity of PS I and PS II, pigment-protein structure of chloroplasts thylakoids and parameters of the fluorescence ...
V.Z. Ulinets, V.P. Polischuk
doaj   +1 more source

Strong Response of Stem Photosynthesis to Defoliation in Mikania micrantha Highlights the Contribution of Phenotypic Plasticity to Plant Invasiveness

open access: yesFrontiers in Plant Science, 2021
Phenotypic plasticity affords invasive plant species the ability to colonize a wide range of habitats, but physiological plasticity of their stems is seldom recognized. Investigation of the stem plasticity of invasive plant species could lead to a better
Jin Zheng   +6 more
doaj   +1 more source

Turnover-synthesis of chloroplast DNA in developing chloroplasts [PDF]

open access: yesJournal of Bacteriology, 1978
The mechanism for the turnover-synthesis of chloroplast DNA in the absence of net synthesis during the chloroplast maturation in Euglena gracilis was determined. DNA synthesis was measured by incorporation of32Pi into chloroplast DNA. The density label, 15N, was incorporated to examine the mechanism of turnover-synthesis. The newly synthesized segments
A M, Walfield, C L, Hershberger
openaire   +2 more sources

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