Tobacco endophytic bacillus velezensis and application thereof

• Main Authors: LI JIANYONG, ZHOU SHIMIN, XIANG SHIPENG, ZENG WEIAI, ZHAI ZHENGGUANG, CAI HAILIN, CHEN WU, HUANG JUN, LIU QINGSHU
• Format: Patent
• Language: Chinese; English
• Published: 12.04.2024
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; BEER; BIOCHEMISTRY; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES; CHEMISTRY; COMPOSITIONS THEREOF; CULTURE MEDIA; ENZYMOLOGY; FERTILISERS; FERTILISERS CHARACTERISED BY THEIR FORM; FISHING; FORESTRY; HUMAN NECESSITIES; HUNTING; MANUFACTURE THEREOF; METALLURGY; MICROBIOLOGY; MICROORGANISMS OR ENZYMES; MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENTSUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVINGA SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES,SOIL-CONDITIONERS, WETTING AGENTS; MUTATION OR GENETIC ENGINEERING; ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS; PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF; PROCESSES USING MICROORGANISMS; PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS; SPIRITS; TRAPPING; VINEGAR; WINE

The invention belongs to the field of microorganisms and biological control, and particularly relates to bacillus velezensis with a wide antibacterial spectrum and application of the bacillus velezensis. The bacterial strain is an endophytic antagonistic bacterium separated from a tobacco field with continuous cropping for many years, and the preservation number of the bacterial strain is GDMCC NO.64125. The strain is wide in antibacterial spectrum, has a remarkable inhibition effect on pathogenic bacteria such as tobacco bacterial wilt, tobacco black stem disease and tobacco brown spot, can generate siderophores and indole-3-acetic acid (IAA), also has the capacity of dissolving organophosphorus, has the prevention and treatment effect on the tobacco bacterial wilt of 51.29%, and shows very good disease-resistant and growth-promoting potential. 本发明属于微生物和生物防治领域，具体涉及抗菌谱广的贝莱斯芽孢杆菌（Bacillus velezensis）及其应用。所述菌株是从多年连作重茬的烟草地分离到的内生拮抗细菌，其保藏编号GDMCC NO.64125。该菌株抗菌谱较广，对烟草青枯病、烟草黑茎病、烟草赤星病等病原菌都有显著抑制效果，该菌能产生铁载体、吲哚-3-乙酸（IAA）