Characterisation of endophyticBacillus thuringiensisstrains isolated from wheat plants as biocontrol agents against wheat flag smut

Autor:	Gongming Yu, Siliang Huang, Bin Li, Tan Wang, Aili Tao, Fahu Pang
Rok vydání:	2014
Předmět:	biology Inoculation Crop yield Biological pest control food and beverages Tiller (botany) Plant disease resistance biology.organism_classification Horticulture Agronomy Insect Science Bacillus thuringiensis Smut Cultivar Agronomy and Crop Science
Zdroj:	Biocontrol Science and Technology. 24:901-924
ISSN:	1360-0478 0958-3157
DOI:	10.1080/09583157.2014.904502
Popis:	To explore effective and ecofriendly means of controlling wheat flag smut (WFS) using biocontrol agents, three endophytic strains (58-2-1, 37-1 and YC-1) of Bacillus sp. were isolated from winter wheat plants in China and identified as Bacillus thuringiensis based on their 16S rDNA sequences as well as phenotypic characteristics. Four morphological (leaf length, root length, dry weight and tiller numbers) and one physiological [root vigour (RV)] parameters of wheat plants treated by strains 58-2-1 and 37-1 were significantly enhanced compared to the control. The soluble sugar contents in the roots of wheat samples treated by the two strains were significantly lower than the control. The resistance of wheat varieties to WFS was investigated by inoculation tests. Of the 12 wheat varieties tested, 6 (Yunhan-618, Bainongaikang-58, Kaimai-20, Zhengmai-9023, 04-zhong-36 and Yanzhan-4110) were identified as WFS-highly resistant (HR), 3 (Pumai-9, Jinboshi-1 and Yunong-202) WFS-moderately resistant (MR), 1 (Yubao-...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3d39445a69ab1627000b2482119ecc0e https://doi.org/10.1080/09583157.2014.904502 Zobrazit plný text záznamu