Results 41 to 50 of about 114,866 (302)

Chloroplast RNA polymerases: Role in chloroplast biogenesis

open access: yesBiochimica et Biophysica Acta (BBA) - Bioenergetics, 2015
Plastid genes are transcribed by two types of RNA polymerase in angiosperms: the bacterial type plastid-encoded RNA polymerase (PEP) and one (RPOTp in monocots) or two (RPOTp and RPOTmp in dicots) nuclear-encoded RNA polymerase(s) (NEP). PEP is a bacterial-type multisubunit enzyme composed of core subunits (coded for by the plastid rpoA, rpoB, rpoC1 ...
Börner, Thomas   +3 more
openaire   +2 more sources

Roles of ROS and NO in Plant Responses to Individual and Combined Salt Stress and Waterlogging

open access: yesAntioxidants
During the climate change era, plants are increasingly exposed to multiple environmental challenges occurring simultaneously or sequentially. Among these, salt stress and waterlogging are two major factors that severely constrain crop productivity ...
Taufika Islam Anee   +4 more
doaj   +1 more source

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

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

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

YlmG1 is localized exclusively to the chloroplast envelope membrane and is involved in preprotein translocation in Arabidopsis thaliana

open access: yesFEBS Open Bio, EarlyView.
Cytosolically synthesized chloroplast preproteins are translocated across the outer and inner envelope membranes through translocons called TOC and TIC, respectively. In green algae and plants, the TIC core is composed of essential membrane proteins, Tic12, Tic20, and Tic214.
Mengyi Li, Xueyang Zhao, Masato Nakai
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

Dating the cyanobacterial ancestor of the chloroplast [PDF]

open access: yes, 2009
Cyanobacteria have played a pivotal role in the history of life on Earth being the first organism to carry out oxygenic photosynthesis, which changed atmospheric chemistry and allowed the evolution of Eukarya.
Amanda Castillo   +2 more
core   +1 more source

Localization and synthesis of prenylquinones in isolated outer and inner envelope membranes from spinach chloroplasts [PDF]

open access: yes, 1985
The prenylquinone content and biosynthetic capabilities of membrane fractions enriched in outer and inner envelope membranes from spinach chloroplasts were analyzed.
Bligh   +23 more
core   +1 more source

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