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Tsitol Genet. 2005 Nov-Dec;39(6):15-23.

[Analysis of reproductive development of mutant Nicotiana sylvestris plants resistant to isopropyl-N-phenylcarbamate].

[Article in Russian]


An analysis of Nicotiana sylvestris mutant plants resistant to isopropyl-N-phenylcarbamate (IPC), one of the representative from phenylcarbamate herbicides, was carried out. The plants were characterized by pollen semi-sterility caused by disruptions during microsporogenesis and cytoplasm synthesis in microspores. Low seed productivity of mutant plans was caused by the high pollen sterility and partially by the low vital activity of seed-buds. Obtained data testify that mutations inducing IPC-resistance lead to cytogenetical and morphological abnormalities in male generative system development, that results in decreasing of seed productivity in N. sylvestris mutants. Character of discovered cytological disruptions testifies about possible defects in organization and functioning of microtubules in mutant plants that can correlate with mutation(s) in one or several microtubule protein genes.

[PubMed - indexed for MEDLINE]
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