Screening, identification and evaluation of an acidophilic strain of B4-7 for the biocontrol of tobacco bacterial wilt.

Tobacco ( L.) bacterial wilt, caused by , is indeed a highly destructive plant disease, leading to substantial damage in tobacco production. While biological control is considered an effective measure for managing bacterial wilt, related research in this area has been relatively limited compared to other control methods.

First Report of stem rot in Cymbidium sinense Caused by Fusarium oxysporum (FOSC) in China.

Cymbidium sinense (Jackson ex Andr.) Willd is a perennial terrestrial plant in the orchid family mainly distributed in China, Japan, India and Southeast Asia that occupies a strong position in the flower market due to its bright green leaves and fragrant flowers (Zhang et al. 2013).

Plant Growth-Promoting Ability of Mycorrhizal Strain KB-3 Enhanced by Its IAA Producing Endohyphal Bacterium, .

KB-3 had been reported as a mycorrhizal fungus of , which can promote the seed germination and vegetative growth. Endohyphal bacteria were demonstrated in the hyphae of the KB-3 by 16S rDNA PCR amplification and SYTO-9 fluorescent nucleic acid staining. A strain KE-1 was isolated and identified based on the multilocus sequence analysis.

Cyclodextrin glycosyltransferase encoded by a gene of Paenibacillus azotofixans YUPP-5 exhibited a new function to hydrolyze polysaccharides with β-1,4 linkage.

The bacteria with hydrolysis activity to glucomannan were isolated from the rhizosphere of Amorphophallus konjac through enrichment cultivation. One strain with strong activity in degrading glucomannan was identified preliminarily as Paenibacillus azotofixans YUPP-5 according to the sequence analysis of 16S rDNA. This strain is able to hydrolyze many polysaccharide with β-1,4 linkage, including glucomannan, galactomannan, xylan, carboxymethyl cellulose, and chitin.