影响作物产量的芽孢杆菌的鉴定及基本生物学特性的研究

STUDIES ON THE IDENTIFICATION AND THE BASIC BIOLOGICAL FROPERTIES OF SOME BACTERIA FOR BIOLOGICAL CONTROL

根据戈登,R.E.等著的《芽孢杆菌属》所提供的检索表,对98株增产与减产芽孢杆菌分离物进行了鉴定。结果表明,占绝对优势的是蜡质芽孢杆菌(Bacillus cereus),其次是短芽孢杆菌(B.brevis)和坚强芽孢杆菌(B.firmus)。目前生产中使用的几种主要增产菌(除83—6外)都是蜡质芽孢杆菌,如83—10,a—47等。此外,作者还对这几种主要的增产菌及几种减产菌菌株的基本生物学特性进行了比较观察,基本了解了它们生长适宜的碳源、氮源、pH值、温度及氨基酸需求等。

Isolates of ninty-eight bacilli including YIB and YDB were identified according to the key in 'The Genus Bacillus'. The results indicate that Bacillus cereus is the superior in its yield increasing effect, then B.brevis and B.firmus.Most of YIB applied in field practice were B.cereus isolates, such as 83-10,a-47, etc. In addition, the basic biological properties of several important YIB and YDB were studied.The suitable growth conditions as carbon resources,nitrogen resources, pH value, temperature and amino acid requirment were evaluated.