Biological Control of Blast Disease of Rice (Oryza sativa L.) with Antagonistic Bacteria and Its Mediation by a Pseudomonas Antibiotic
Biological Control of Blast Disease of Rice (Oryza sativa L.) with Antagonistic Bacteria and Its Mediation by a Pseudomonas Antibiotic
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拮抗细菌对水稻稻瘟病的生物防治及其假单胞菌抗生素的介导
DOI：
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发表时间：
1992
期刊：
影响因子：
--
通讯作者：
T. Mew
中科院分区：
文献类型：
--
作者：
S. Gnanamanickam;T. Mew
水稻植株伴生微生物包括假单胞菌属。和芽孢杆菌属。分离并测试了对稻瘟病菌Pyricularia cauv.在菲律宾的一个高地农场进行的四个选定菌株的田间试验提供了显着的叶瘟减少水稻变种。UPLRi-5。经鉴定为荧光假单胞菌的菌株7-14的效果最好。该菌株粗提物在1.0ppm时对孢子萌发的抑制率为70-100%。抗稻瘟病提取物还能保护IR 50水稻幼苗免受稻瘟病菌的侵染。铁载体可能不参与菌株7-14对稻瘟病菌的拮抗作用。离体试验表明，铁对菌株7-14的抑菌作用无明显的拮抗作用。因此，抗稻瘟病抗生素，而不是铁载体的生产假单胞菌菌株7-14保护水稻幼苗免受感染。
Rice plant associated microorganisms both Pseudomonas spp. and Bacillus spp. were isolated and tested for antagonism against the rice blast fungus Pyricularia oryzae Cav. Field test of four selected strains in an upland rice farm in the Philippines afforded significant leaf blast reduction with rice var. UPLRi-5. Strain 7-14, identified as P. fluorescens was most effective. The crude extract prepared from this strain provided 70-100% inhibition of conidial germination at 1.0ppm. The antiblast extract also protected IR 50 rice seedlings from infection of P. oryzae. Evidence suggested that siderophore was unlikely to be involved in the mechanism of strain 7-14 in its antagonism against the rice blast fungus. In vitro test showed that inhibition of P. oryzae by strain 7-14 was not reversed by Fe amendments. Thus, the antiblast antibiotic, instead of siderophore production from Pseudomonas strain 7-14 protected rice seedlings from infection by P. oryzae.
荧光假单胞菌的进化。
DOI：
10.1099/00221287-120-2-485
发表时间：
1980
期刊：
Journal of general microbiology
影响因子：
--
作者：
Champion,AB;Barrett,EL;Palleroni,NJ;Soderberg,KL;Kunisawa,R;Contopoulou,R;Wilson,AC;Doudoroff,M
通讯作者：
Doudoroff,M