“El Chichonal”火山植物和微生物生命的探索与可持续农业前景。

IF 3.3 3区 生物学 Q2 ECOLOGY
A Rios-Reyes, K J Gonzalez-Lozano, J P Cabral-Miramontes, J J Hernandez-Gonzalez, A Rios-Sosa, P E Alvarez-Gutierrez, S P Mireles-Torres, R A Batista-García, E T Arechiga-Carvajal
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引用次数: 0

摘要

活火山环境是微生物生物勘探潜力尚未开发的极端栖息地。本研究旨在表征El Chichonal火山火山口的先锋植被和相关微生物多样性,并重点研究其在可持续农业中的潜在应用。对土壤进行了理化分析,确定了酸性和营养不良的条件。描述了3个先锋植物种:龙叶Tibouchina(优势种)和禾科(共优势种)以及Palhinhaea cernua(非优势种)。从土壤、根、茎和水样中分离出311个微生物,以细菌为主。蜡样芽孢杆菌(Bacillus cereus)和巨型芽孢杆菌(Priestia megaterium)进行了分子鉴定,体外实验证明它们具有固定氮、产生生长素和拮抗真菌病原体(番茄赤霉(Alternaria solani)、灰霉病菌(Botrytis cinerea)和gloeosporioides)的能力。这些结果表明,适应极端火山环境的微生物可能是植物生长促进菌(PGPB)的有希望的来源,并在生物防治中应用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Exploration of Plant and Microbial Life at "El Chichonal" Volcano with a Sustainable Agriculture Prospection.

Active volcanic environments represent extreme habitats with underexplored potential for microbial bioprospecting. This study aimed to characterize pioneer vegetation and associated microbial diversity in the crater of "El Chichonal" volcano, with an emphasis on their potential applications in sustainable agriculture. A physicochemical analysis of the soil was performed, identifying acidic and nutrient-poor conditions. Three pioneer plant species were described: Tibouchina longifolia (dominant) and Poaceae spp. (co-dominant), and Palhinhaea cernua (non-dominant). A total of 311 microorganisms were predominantly bacteria, were isolated from soil, root, stem, and water samples. Bacillus cereus and Priestia megaterium were molecularly identified, and in vitro assays demonstrated their ability to fix nitrogen, produce auxins, and antagonize fungal pathogens (Alternaria solani, Botrytis cinerea, and Colletotrichum gloeosporioides). These results suggest that microorganisms adapted to extreme volcanic environments could be promising sources of plant growth-promoting bacteria (PGPB) with application in biological control.

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来源期刊
Microbial Ecology
Microbial Ecology 生物-海洋与淡水生物学
CiteScore
6.90
自引率
2.80%
发文量
212
审稿时长
3-8 weeks
期刊介绍: The journal Microbial Ecology was founded more than 50 years ago by Dr. Ralph Mitchell, Gordon McKay Professor of Applied Biology at Harvard University in Cambridge, MA. The journal has evolved to become a premier location for the presentation of manuscripts that represent advances in the field of microbial ecology. The journal has become a dedicated international forum for the presentation of high-quality scientific investigations of how microorganisms interact with their environment, with each other and with their hosts. Microbial Ecology offers articles of original research in full paper and note formats, as well as brief reviews and topical position papers.
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