عنوان

Genetic variation in strains of Clavibacter michiganensis subsp. michiganensis and the development of bird's eye fruit lesions on tomatoes

شماره

TLpq304522779

زبان متن نوشتاري يا گفتاري و مانند آن

انگلیسی

عنوان اصلي

Genetic variation in strains of Clavibacter michiganensis subsp. michiganensis and the development of bird's eye fruit lesions on tomatoes

نام عام مواد

[Thesis]

نام نخستين پديدآور

C. M. Medina-Mora

نام ناشر، پخش کننده و غيره

Michigan State University

تاریخ نشرو بخش و غیره

1999

نام خاص و کميت اثر

145

جزئيات پايان نامه و نوع درجه آن

M.S.

کسي که مدرک را اعطا کرده

Michigan State University

امتياز متن

1999

متن يادداشت

Bacterial canker of tomato is a major concern worldwide because disease occurrence is sporadic and may result in large yield reductions. Computer-assisted analysis of repetitive sequence-based Polymerase Chain Reaction (rep-PCR) genomic fingerprints generated with the universal primers BOX and (GTG)5 suggested genomic variation in Clavibacter michiganensis subsp. michiganensis (Cmm) is relatively limited. However, (GTG)5-PCR fingerprint patterns do differentiate strains within the previously designated BOX-PCR types (A, B, C, D, and E). Intraspecific diversity using combined (GTG)5-PCR and BOX-PCR data is as follows; usd\rm C>A\ge B>D>Eusd. These data may provide useful genetic markers to trace Cmm strains used in epidemiological studies. Fruit spotting resulting from Cmm infection is one of the most unpredictable tomato disease symptoms of bacterial canker in Michigan. Therefore, fruit spot formation was studied by spraying flowers with Cmm at various developmental stages. Maximum incidence of spotted fruit and maximum severity of fruit lesions resulted when inoculum was applied twice, a possible indication that a bacterial population threshold is required for the onset of fruit spots. Chemical control strategies could be formulated to reduce the level of unmarketable tomato fruit.

موضوع مستند نشده

Biological sciences

موضوع مستند نشده

Genetics

موضوع مستند نشده

Plant pathology

مستند نام اشخاص تاييد نشده

C. M. Medina-Mora

نام الکترونيکي

فرمت انتشار

p

نوع ماده

[Thesis]

کد کاربرگه

276903

سطح دسترسي

a

تكميل شده

Y