New sources of resistance to bacterial wilt identified in dry bean germplasm collection

IF 1.3 4区农林科学 Q3 AGRONOMY

Crop Breeding and Applied Biotechnology Pub Date : 2004-03-30 DOI:10.12702/1984-7033.V04N01A18

C. Rava, Joaquim Geraldo, C. Costa, J. R. Fonseca, Andréia Luiza Salgado

引用次数: 4

Abstract

Objectives of the present investigation were to obtain preliminary knowledge on the variability of Curtobacterium flaccumfasciens pv. flaccumfasciens (Cff) and identify new sources of resistance to bacterial wilt of dry bean. Three isolates of Cff were inoculated on the cultivars Perola, Xamego, Rosinha G-2, Diamante Negro and Valente. Since the non-environmental variation was mainly affected by isolates and cultivars, the isolate Cff CNF 4 was selected to test dry bean genotypes for disease resistance due to its high degree of pathogenicity in a set of six cultivars. Of 333 tested accessions, 12 exhibited resistance reaction, while 85 plants showed both compatible and incompatible reactions to the pathogen. The resistant plants were selected and the families derived from these plants will be further tested to confirm the resistance reaction. The resist ant accessions and the selected ones that confirm the reaction class will be incorporated in the Embrapa Rice and Beans breeding program.

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在干豆种质收集中发现抗青枯病的新来源

本调查的目的是获得初步的变异的黄筋枯杆菌pv的知识。并鉴定干豆细菌性枯萎病抗性的新来源。将3株Cff菌株接种在Perola、Xamego、Rosinha G-2、Diamante Negro和Valente等品种上。由于非环境变异主要受分离物和品种的影响，因此选择Cff CNF 4分离物在6个品种中具有较高的致病性，进行干豆基因型抗病试验。333份供试材料中，12份表现出抗性反应，85份表现出亲和和不亲和反应。对抗性植物进行筛选，并对这些植物的科系进行进一步检测，以确定抗性反应。抗性材料和确认反应等级的选择材料将纳入Embrapa水稻和豆类育种计划。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Crop Breeding and Applied Biotechnology AGRONOMY-BIOTECHNOLOGY & APPLIED MICROBIOLOGY

CiteScore

2.70

自引率

13.30%

发文量

审稿时长

6-12 weeks

期刊介绍： The CBAB – CROP BREEDING AND APPLIED BIOTECHNOLOGY (ISSN 1984-7033) – is the official quarterly journal of the Brazilian Society of Plant Breeding, abbreviated CROP BREED APPL BIOTECHNOL. It publishes original scientific articles, which contribute to the scientific and technological development of plant breeding and agriculture. Articles should be to do with basic and applied research on improvement of perennial and annual plants, within the fields of genetics, conservation of germplasm, biotechnology, genomics, cytogenetics, experimental statistics, seeds, food quality, biotic and abiotic stress, and correlated areas. The article must be unpublished. Simultaneous submitting to another periodical is ruled out. Authors are held solely responsible for the opinions and ideas expressed, which do not necessarily reflect the view of the Editorial board. However, the Editorial board reserves the right to suggest or ask for any modifications required. The journal adopts the Ithenticate software for identification of plagiarism. Complete or partial reproduction of articles is permitted, provided the source is cited. All content of the journal, except where identified, is licensed under a Creative Commons attribution-type BY. All articles are published free of charge. This is an open access journal.