Results 41 to 50 of about 234,061 (389)

The Intracellular Distribution of Folate Derivatives in Pea Leaves

open access: yesPteridines, 2003
After hydrolysis of polyglutamate derivatives, leaf extracts of pea (Pisum sativum L.) seedlings were examined for individual folates using high Performance liquid chromatography and microbiological assays employing Lactobacillus rhamnosus and ...
Chan Sherwin Y., Cossins Edwin A.
doaj   +2 more sources

The protein import apparatus of chloroplasts [PDF]

open access: yes, 1993
Routing of cytosolically synthesized precursor proteins into chloroplasts is a specific process which involves a multitude of soluble and membrane components.
Bartling D.   +17 more
core   +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

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

The Targeting of the atToc159 Preprotein Receptor to the Chloroplast Outer Membrane is Mediated by its GTPase Domain and is Regulated by GTP [PDF]

open access: yes, 2002
The multimeric translocon at the outer envelope membrane of chloroplasts (Toc) initiates the recognition and import of nuclear-encoded preproteins into chloroplasts.
Hiltbrunner, Andreas   +3 more
core   +2 more sources

Chloroplasts at the Crossroad of Photosynthesis, Pathogen Infection and Plant Defense

open access: yesInternational Journal of Molecular Sciences, 2018
Photosynthesis, pathogen infection, and plant defense are three important biological processes that have been investigated separately for decades. Photosynthesis generates ATP, NADPH, and carbohydrates.
Yan Lu, Jian Yao
semanticscholar   +1 more source

Sensitivity and responses of chloroplasts to salt stress in plants

open access: yesFrontiers in Plant Science
Chloroplast, the site for photosynthesis and various biochemical reactions, is subject to many environmental stresses including salt stress, which affects chloroplast structure, photosynthetic processes, osmotic balance, ROS homeostasis, and so on.
Xuemei Wang, Zengting Chen, N. Sui
semanticscholar   +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

Molecular bases of circadian magnesium rhythms across eukaryotes

open access: yesFEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Nuclear Photosynthetic Gene Expression Is Synergistically Modulated by Rates of Protein Synthesis in Chloroplasts and Mitochondria [PDF]

open access: yes, 2006
Arabidopsis thaliana mutants prors1-1 and -2 were identified on the basis of a decrease in effective photosystem II quantum yield. Mutations were localized to the 5'-untranslated region of the nuclear gene PROLYL-tRNA SYNTHETASE1 (PRORS1), which acts in ...
Bhushan, Shashi   +7 more
core   +2 more sources

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