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Role of Exopolysaccharides of Rhizobium leguminosarum bv. viciae as Host Plant-Specific Molecules Required for Infection Thread Formation During Nodulation of Vicia sativa

التفاصيل البيبلوغرافية
العنوان: Role of Exopolysaccharides of Rhizobium leguminosarum bv. viciae as Host Plant-Specific Molecules Required for Infection Thread Formation During Nodulation of Vicia sativa
المؤلفون: Wilbert A. T. van Workum, Sophie van Slageren, Anton A. N. van Brussel, Jan W. Kijne
المصدر: Molecular Plant-Microbe Interactions, Vol 11, Iss 12, Pp 1233-1241 (1998)
بيانات النشر: The American Phytopathological Society, 1998.
سنة النشر: 1998
المجموعة: LCC:Microbiology
LCC:Botany
مصطلحات موضوعية: exo mutants, Nod factors, root nodules, Microbiology, QR1-502, Botany, QK1-989
الوصف: Mutants of Rhizobium leguminosarum bv. viciae bacteria that are affected in the biosynthesis of exopolysaccharides (EPS) are unable to effectively nodulate their host plants. By studying defined mutants, we show that R. legumi-nosarum bv. viciae strains require EPS for formation of infection threads in Vicia sativa (vetch) as well as for efficient induction of tight root hair curling. Results of coinoculation experiments with the EPS-deficient pssD111 mutant of R. leguminosarum bv. viciae in combination with heterologous EPS-producing strains indicated that vetch has certain structural requirements for rhizobial EPS to function in symbiosis. We hypothesize that EPS accelerates root hair curling and infection to such an extent that rhizobial root penetration precedes a plant defense response.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1943-7706
0894-0282
Relation: https://doaj.org/toc/0894-0282; https://doaj.org/toc/1943-7706
DOI: 10.1094/MPMI.1998.11.12.1233
URL الوصول: https://doaj.org/article/cfdec5de937943ff8db207a61483a9f7
رقم الانضمام: edsdoj.fdec5de937943ff8db207a61483a9f7
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:19437706
08940282
DOI:10.1094/MPMI.1998.11.12.1233