三个大白菜品种在连续栽培和单一栽培期间土壤原核微生物组的差异

IF 1.4 4区 农林科学 Q4 SOIL SCIENCE Eurasian Soil Science Pub Date : 2024-07-30 DOI:10.1134/s1064229323603566
Fang Wang, Xiaoli Wang, Rong Zhao, Lihua Zhang, Suhua Li, Nan Zhang, Haozhang Han
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引用次数: 0

摘要

摘要设施大白菜的连作栽培带来了巨大的挑战,制约了大白菜产业的健康可持续发展。本研究采用元基因组测序技术研究连作条件下土壤微生物的变化,并结合土壤化学性质研究土壤微生物区系与土壤质量的相关性。结果表明,连续种植三个品种的大白菜后,微生物操作分类单元(OTUs)以及土壤微生物群落的丰度和多样性都有所下降。假单胞菌和放线菌是土壤微生物群落中最主要的门类。三个大白菜品种的连作显著增加了假单胞菌群的相对丰度,但降低了放线菌群的相对丰度,增加了革霉属、酵母属、根瘤菌属、甾体菌属和芽孢杆菌属的相对丰度,降低了假单胞菌属、布拉迪根瘤菌属、Nocardioides 和 Solirubrobacter 的相对丰度。Nocardioides的相对丰度与\({text{NO}}_{3}^{ - }\) 、Cl-以及可利用的铁、铜和锌水平呈显著负相关。相反,假单胞菌的丰度与土壤 pH 值呈显著正相关,但与\({text{NO}}_{3}^{ - }\) 、\({text{HCO}}_{3}^{ - }\) 、\({text{SO}}_{4}^{2 - }}\) 、Cl-、Ca2+、Na+、K+以及可利用的铁、铜和锌水平呈负相关。这些研究结果表明,在所研究的三种蔬菜作物中,Nocardioides 和假单胞菌数量的减少可能在很大程度上加剧了连作的挑战。
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Differences in the Soil Prokaryotic Microbiome during Continuous and Single Cultivation of Three Varieties of Chinese Cabbage

Abstract

Extended cultivation of Chinese cabbage in facility leads to significant continuous cropping challenges, which limits the healthy and sustainable development of the cabbage industry. This study employed metagenomic sequencing to examine soil microbial changes under continuous cropping, integrating soil chemical properties to investigate correlations between soil microbiota and soil quality. Results indicated that after continuous cropping of three varieties of Chinese cabbage, there were decreases in microbial Operational Taxonomic Units (OTUs) and the abundance and diversity of soil microbial communities. Pseudomonadota and Actinomycetota were the most dominant Phyla in the soil microbial community. The continuous cropping of three varieties of Chinese cabbage significantly increased the relative abundance of Pseudomonadota but decreased that of Actinomycetota and increased the relative abundance of Gemmatimonas, Enhygromyxa, Rhizobium, Steroidobacter, and Bacillus, decreased the relative abundance of Pseudomonas, Bradyrhizobium, Nocardioides, and Solirubrobacter. The relative abundance of Nocardioides demonstrated a significant negative correlation with \({\text{NO}}_{3}^{ - }\), Cl, and available Fe, Cu, and Zn levels. Conversely, Pseudomonas abundance showed a significant positive correlation with soil pH but a negative correlation with \({\text{NO}}_{3}^{ - }\), \({\text{HCO}}_{3}^{ - }\), \({\text{SO}}_{4}^{{2 - }}\), Cl, Ca2+, Na+, K+, and available Fe, Cu, and Zn levels. These findings suggested that the reduced abundance of Nocardioides and Pseudomonas may contribute substantially to the continuous cropping challenges observed in the three vegetable crops studied.

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来源期刊
Eurasian Soil Science
Eurasian Soil Science 农林科学-土壤科学
CiteScore
2.70
自引率
35.70%
发文量
137
审稿时长
12-24 weeks
期刊介绍: Eurasian Soil Science publishes original research papers on global and regional studies discussing both theoretical and experimental problems of genesis, geography, physics, chemistry, biology, fertility, management, conservation, and remediation of soils. Special sections are devoted to current news in the life of the International and Russian soil science societies and to the history of soil sciences. Since 2000, the journal Agricultural Chemistry, the English version of the journal of the Russian Academy of Sciences Agrokhimiya, has been merged into the journal Eurasian Soil Science and is no longer published as a separate title.
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