在南极洲分离的假单胞菌抑制植物致病性绿黄假单胞菌和荧光假单胞菌

IF 0.5 Q4 ECOLOGY Czech Polar Reports Pub Date : 2022-02-11 DOI:10.5817/cpr2021-2-18
Kateřina Snopková, K. Dufková, D. Šmajs
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引用次数: 0

摘要

假单胞菌引起的植物疾病在世界范围内普遍存在,影响到大多数主要高等植物系,因此可能造成重大经济损失。尽管利用根际和土壤细菌产生的细菌素已被认为是一种新的作物保护方法,但冷适应分离物对农业上重要的植物致病菌的拮抗作用尚未得到研究。在本研究中,我们测试了南极假单胞菌对植物致病性假单胞菌的抑制活性。4种南极菌株(p.p prosekii CCM 8878、CCM 8879、CCM 8881和假单胞菌sp. CCM 8880)抑制了几种植物致病菌株P. viridiflava和P. fluorescens。根据抑制区特征和先前的基因组研究,我们认为L-pyocin活性是对黄绿假单胞菌产生这种作用的原因,而tailocin对荧光假单胞菌有抑制作用。
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Pseudomonas prosekii isolated in Antarctica inhibits plantpathogenic strains of Pseudomonas viridiflava and Pseudomonas fluorescens
Pseudomonas-caused plant diseases are present worldwide and affect most of the major lineages of higher plants which, as a consequence, may result in significant economic losses. Despite the use of bacteriocins produced by rhizosphere and soil bacteria has been nowadays considered as novel crop protection approach, antagonistic interactions of cold-adapted isolates toward agriculturally important phytopathogenic bacteria have not been studied yet. In this study, we tested inhibition activity of Antarctic Pseudomonas spp. against phytopathogenic pseudomonads. Four Antarctic stains (P. prosekii CCM 8878, CCM 8879, and CCM 8881 and Pseudomonas sp. CCM 8880) inhibited several phytopathogenic strains of P. viridiflava and P. fluorescens. Based on inhibition zone character and previous genome research we suggest that L-pyocin activity was responsible for this effect against P. viridiflava strains and that tailocin inhibited P. fluorescens isolate.
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来源期刊
Czech Polar Reports
Czech Polar Reports Agricultural and Biological Sciences-Agricultural and Biological Sciences (all)
CiteScore
1.30
自引率
10.00%
发文量
22
期刊介绍: Czech Polar Reports is an international, multidisciplinary, peer-reviewed journal. It is issued 2 times a year. The journal is dedicated to provide original research papers for sciences related to the polar regions and other planets with polar analogues. Czech Polar Reports covers the disciplines listed below. polar paleontology, geology, geochemistry, geomorphology, glaciology, climatology, hydrology, pedology, biochemistry, ecology, environmental science, microbiology, plant and animal biology including marine biology.
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