scholarly journals Complex I Impairment, Respiratory Compensations, and Photosynthetic Decrease in Nuclear and Mitochondrial Male Sterile Mutants of Nicotiana sylvestris

2000 ◽  
Vol 124 (3) ◽  
pp. 1239-1250 ◽  
Author(s):  
Mohammed Sabar ◽  
Rosine De Paepe ◽  
Yaroslav de Kouchkovsky
Keyword(s):  
Complex I ◽  
Nicotiana Sylvestris ◽  
Male Sterile

Leaf age-related changes in respiratory pathways are dependent on complex I activity in Nicotiana sylvestris

2007 ◽  
Vol 129 (1) ◽  
pp. 152-162 ◽  
Author(s):  
Pierrick Priault ◽  
Guillaume Vidal ◽  
Rosine De Paepe ◽  
Miquel Ribas-Carbo
Keyword(s):  
Complex I ◽  
Leaf Age ◽  
Nicotiana Sylvestris ◽  
Age Related ◽  
Complex I Activity ◽  
Age Related Changes

Regeneration of cytoplasmic male sterile protoclones of Nicotiana sylvestris with mitochondrial variations

1988 ◽  
Vol 13 (3) ◽  
pp. 261-266 ◽  
Author(s):  
X. Q. Li ◽  
P. Chetrit ◽  
C. Mathieu ◽  
F. Vedel ◽  
R. De Paepe ◽  
...  
Keyword(s):  
Nicotiana Sylvestris ◽  
Male Sterile ◽  
Cytoplasmic Male Sterile

scholarly journals Cell-to-cell movement of mitochondria in plants

2016 ◽  
Vol 113 (12) ◽  
pp. 3395-3400 ◽  
Author(s):  
Csanad Gurdon ◽  
Zora Svab ◽  
Yaping Feng ◽  
Dibyendu Kumar ◽  
Pal Maliga
Keyword(s):  
Mitochondrial Dna ◽  
Mitochondrial Genome ◽  
Mitochondrial Gene ◽  
Cell Movement ◽  
Evolutionary Process ◽  
Nicotiana Sylvestris ◽  
Dna Transfer ◽  
Male Sterile ◽  
Mitochondrial Movement ◽  
Homeotic Conversion

We report cell-to-cell movement of mitochondria through a graft junction. Mitochondrial movement was discovered in an experiment designed to select for chloroplast transfer from Nicotiana sylvestris into Nicotiana tabacum cells. The alloplasmic N. tabacum line we used carries Nicotiana undulata cytoplasmic genomes, and its flowers are male sterile due to the foreign mitochondrial genome. Thus, rare mitochondrial DNA transfer from N. sylvestris to N. tabacum could be recognized by restoration of fertile flower anatomy. Analyses of the mitochondrial genomes revealed extensive recombination, tentatively linking male sterility to orf293, a mitochondrial gene causing homeotic conversion of anthers into petals. Demonstrating cell-to-cell movement of mitochondria reconstructs the evolutionary process of horizontal mitochondrial DNA transfer and enables modification of the mitochondrial genome by DNA transmitted from a sexually incompatible species. Conversion of anthers into petals is a visual marker that can be useful for mitochondrial transformation.

scholarly journals A mitochondrial dysfunction induces the expression of nuclear-encoded complex I genes in engineered male sterile Arabidopsis thaliana

FEBS Letters ◽  
2002 ◽  
Vol 532 (1-2) ◽  
pp. 70-74 ◽  
Author(s):  
Diego F Gómez-Casati ◽  
Maria V Busi ◽  
Nahuel Gonzalez-Schain ◽  
Armand Mouras ◽  
Eduardo J Zabaleta ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Mitochondrial Dysfunction ◽  
Complex I ◽  
Male Sterile

scholarly journals Organization and Expression of the Mitochondrial Genome in the Nicotiana sylvestris CMSII Mutant

Genetics ◽  
1998 ◽  
Vol 150 (2) ◽  
pp. 873-882
Author(s):  
Christine Lelandais ◽  
Béatrice Albert ◽  
Sophie Gutierres ◽  
Rosine De Paepe ◽  
Bernard Godelle ◽  
...  
Keyword(s):  
Mitochondrial Genome ◽  
Male Sterility ◽  
Molecular Basis ◽  
Complex I ◽  
Nicotiana Sylvestris ◽  
Large Deletion ◽  
Mitochondrial Genes ◽  
Poor Growth ◽  
Unique Gene ◽  
Mtdna Organization

Abstract Previous analyses suggested that the Nicotiana sylvestris CMSII mutant carried a large deletion in its mitochondrial genome. Here, we show by cosmid mapping that the deletion is 60 kb in length and contains several mitochondrial genes or ORFs, including the complex I nad7 gene. However, due to the presence of large duplications in the progenitor mitochondrial genome, the only unique gene that appears to be deleted is nad7. RNA gel blot data confirm the absence of nad7 expression, strongly suggesting that the molecular basis for the CMSII abnormal phenotype, poor growth and male sterility, is the altered complex I structure. The CMSII mitochondrial genome appears to consist essentially of one of two subgenomes resulting from recombination between direct short repeats. In the progenitor mitochondrial genome both recombination products are detected by PCR and, reciprocally, the parental fragments are detected at the substoichiometric level in the mutant. The CMSII mtDNA organization has been maintained through six sexual generations.

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