Studies on the dwarf disease of milk vetch (Astragalus sinicus).
نویسندگان
چکیده
منابع مشابه
Karyological study on endemic Astragalus stereocalyx Bornm. (Milk-vetch) in Turkey
Chromosome number and karyotype of Astragalus stereocalyx Bornm. (Milk-vetch) in the section Stereocalyx Bornm. distributing naturally in Turkey were analyzed in detail. This species is endemic to Turkey and growing in Eskişehir and Konya provinces. Squash preparation method was used for chromosome study in this species. The somatic chromosome number was determined as 2n = 16 in A. stereocalyx....
متن کاملSequences of ten circular ssDNA components associated with the milk vetch dwarf virus genome.
Milk vetch dwarf virus (MDV) is a member of the proposed genus Nanovirus, and its genome is composed of multiple, circular ssDNA components of about 1 kb. We have cloned and sequenced ten ssDNA components and designated them MDV-C1 to C10. Each DNA component contains one potential major open reading frame, and contains a putative stem-loop structure in the non-coding region. Notably, four compo...
متن کاملCharacteristics of the promoters derived from the single-stranded DNA components of Milk vetch dwarf virus in transgenic tobacco.
Predicted promoter regions of Milk vetch dwarf virus (MDV) components (C1-C11) were isolated and fused with a beta-glucuronidase (GUS) reporter gene and the characteristics of the promoters were examined. In transgenic tobacco calli, promoters of MDV C4 (encoding a cell-cycle link protein), C5 and C7 (both encoding unknown proteins), C6 (encoding a nuclear-shuttle protein) and C8 (encoding a mo...
متن کاملThe common nodulation genes of Astragalus sinicus rhizobia are conserved despite chromosomal diversity.
The nodulation genes of Mesorhizobium sp. (Astragalus sinicus) strain 7653R were cloned by functional complementation of Sinorhizobium meliloti nod mutants. The common nod genes, nodD, nodA, and nodBC, were identified by heterologous hybridization and sequence analysis. The nodA gene was found to be separated from nodBC by approximately 22 kb and was divergently transcribed. The 2. 0-kb nodDBC ...
متن کاملsurvey on the rule of the due & hindering relying on the sheikh ansaris ideas
قاعده مقتضی و مانع در متون فقهی کم و بیش مستند احکام قرار گرفته و مورد مناقشه فقهاء و اصولیین می باشد و مشهور معتقند مقتضی و مانع، قاعده نیست بلکه یکی از مسائل ذیل استصحاب است لذا نگارنده بر آن شد تا پیرامون این قاعده پژوهش جامعی انجام دهد. به عقیده ما مقتضی دارای حیثیت مستقلی است و هر گاه می گوییم مقتضی احراز شد یعنی با ماهیت مستقل خودش محرز گشته و قطعا اقتضاء خود را خواهد داشت مانند نکاح که ...
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ژورنال
عنوان ژورنال: Japanese Journal of Phytopathology
سال: 1953
ISSN: 1882-0484,0031-9473
DOI: 10.3186/jjphytopath.17.65