Turnover-synthesis of chloroplast DNA in developing chloroplasts [PDF]
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
PPR647 Protein Is Required for Chloroplast RNA Editing, Splicing and Chloroplast Development in Maize. [PDF]
Chloroplasts play an essential role in plant growth and development. Any factors affecting chloroplast development will lead to abnormal plant growth. Here, we characterized a new maize mutant, albino seedling mutant 81647 (as-81647), which exhibits an ...
Zhao Y +7 more
europepmc +2 more sources
A Plastid RNA Polymerase-Associated Protein Is Involved in Early Chloroplast Development in Rice
Plastid-encoded RNA polymerase (PEP) regulates the expression of chloroplast genes involved in photosynthesis and chloroplast development in rice. The PEP-associated protein (PAP) PAP7/pTAC14 is essential for the formation of the PEP complex.
Shuang Song +11 more
doaj +1 more source
Chloroplast dismantling in leaf senescence [PDF]
In photosynthetic plant cells, chloroplasts act as factories of metabolic intermediates that support plant growth. Chloroplast performance is highly influenced by environmental cues.
Domínguez del Toro, Fernando +1 more
core +1 more source
Disruption of a Rice Chloroplast-Targeted Gene OsHMBPP Causes a Seedling-Lethal Albino Phenotype
Background Chloroplast development is coordinately regulated by plastid- and nuclear-encoding genes. Although many regulators have been reported to be involved in chloroplast development, new factors remain to be identified, given the complexity of this ...
X. Liu +4 more
doaj +1 more source
Proteomic Responses of Dark-Adapted Euglena gracilis and Bleached Mutant Against Light Stimuli
Euglena gracilis (E. gracilis) has secondary endosymbiotic chloroplasts derived from ancient green algae. Its chloroplasts are easily lost under numerous conditions to become permanently bleached mutants.
Zhenfan Chen +10 more
doaj +1 more source
PIF3 is a repressor of chloroplast development [PDF]
The phytochrome-interacting factor PIF3 has been proposed to act as a positive regulator of chloroplast development. Here, we show that the pif3 mutant has a phenotype that is similar to the pif1 mutant, lacking the repressor of chloroplast development PIF1, and that a pif1pif3
Stephenson, Patrick G. +2 more
openaire +4 more sources
The gateway to chloroplast: re-defining the function of chloroplast receptor proteins [PDF]
Chloroplast biogenesis often requires a tight orchestration between gene expression (both plastidial and nuclear) and translocation of similar to 3000 nuclear-encoded proteins into the organelle.
Bölter, Bettina +2 more
core +1 more source
The Arabidopsis ppi1 mutant is specifically defective in the expression, chloroplast import, and accumulation of photosynthetic proteins [PDF]
The import of nucleus-encoded proteins into chloroplasts is mediated by translocon complexes in the envelope membranes. A component of the translocon in the outer envelope membrane, Toc34, is encoded in Arabidopsis by two homologous genes, atTOC33 and ...
Baldwin, Amy +27 more
core +1 more source
Background Plastid-encoded RNA polymerase (PEP) plays an essential role in chloroplast development by governing the expression of genes involved in photosynthesis. At least 12 PEP-associated proteins (PAPs), including FSD3/PAP4, regulate PEP activity and
Sangyool Lee +4 more
doaj +1 more source

