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Interactions of Mitochondrial and Nuclear Genes That Affect Male Gametophyte Development
Apart from their agronomic importance in hybrid seed production, mutations that encode cytoplasmic male sterility (CMS) provide a means to probe the role of the mitochondrion in reproductive…
A pentatricopeptide repeat-containing gene restores fertility to cytoplasmic male-sterile plants
- S. Bentolila, A. A. Alfonso, M. Hanson
- BiologyProceedings of the National Academy of Sciences…
- 22 July 2002
The isolation of a gene directly involved in the control of the expression of a cytoplasmic male sterility-encoding gene is reported, and the Petunia restorer of fertility gene product is a mitochondrially targeted protein that is almost entirely composed of 14 repeats of the 35-aa pentatricopeptide repeat motif.
Exchange of protein molecules through connections between higher plant plastids.
In transgenic plants in which the plastid stroma was labeled with green fluorescent protein (GFP), thin tubular projections emanated from individual plastids and sometimes connected to other plasts, which allow the exchange of molecules within an interplastid communication system, which may facilitate the coordination of plasts activities.
Mobilization of Rubisco and Stroma-Localized Fluorescent Proteins of Chloroplasts to the Vacuole by an ATG Gene-Dependent Autophagic Process1[W][OA]
It is concluded that Rubisco and stroma-targeted fluorescent proteins can be mobilized to the vacuole through an ATG gene-dependent autophagic process without prior chloroplast destruction.
Chloroplast RNA metabolism.
This review covers four major chloroplast posttranscriptional processes: RNA processing, editing, splicing, and turnover, which involves proteins of the pentatricopeptide motif-containing family, which does not occur in prokaryotes.
The Arabidopsis AtRaptor genes are essential for post-embryonic plant growth
In insights into the ways in which TOR/Raptor signaling has been adapted to regulate plant growth and development, the data implicate the TOR signaling pathway, a major regulator of cell growth in yeast and metazoans, in the maintenance of growth from the shoot apical meristem in plants.
Plastid tubules of higher plants are tissue-specific and developmentally regulated.
Plastids and stromules interact with the nucleus and cell membrane in vascular plants
The results suggest that stromules have diverse roles within plant cells, perhaps serving as pathways between nuclei and more distant regions of the cell and possibly even other cells.
The green fluorescent protein as a marker to visualize plant mitochondria in vivo.
- R. H. Köhler, W. Zipfel, W. Webb, M. Hanson
- BiologyThe Plant journal : for cell and molecular…
- 1 March 1997
Fluorescence is localized specifically to mitochondria in cells expressing coxIVGFP fusion protein as shown by co-localization with a mitochondrial-specific dye, which permits the direct observation of mitochondria and mitochondrial movements in living plant cells and tissues throughout plant development.
Stromules and the dynamic nature of plastid morphology
Investigation of plastids via green fluorescent protein (GFP) has led to the rediscovery of tubular extensions of the plastid membrane, termed stromules, for stroma‐filled tubules, which are challenging the understanding of plasts structure and function.