酸盐溶解和植物生长特性是由石灰质土壤中的乳酸细菌促进的
Haifeng Li1, Siyuan Chen2, Mengyu Wang2
1College of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, China. hfli@haut.edu.cn.
Applied microbiology and biotechnology
|December 30, 2023
概括
乳酸细菌 (LAB) 通过溶解酸盐并增强有益的土壤微生物,有效地促进玉米的生长. 这项研究强调LAB是环保的生物肥料,可以提高作物产量.
科学领域:
- 农业微生物学 农业微生物学
- 土壤科学 土壤科学
- 植物营养 植物营养
背景情况:
- 乳酸细菌 (LAB) 具有酸盐溶解能力.
- 酸盐溶解对于植物的营养吸收和生长至关重要.
- 石灰质土壤通常具有有限的可用性.
研究的目的:
- 为了评估一个Limosilactobacillus sp.的疗效. 用于酸盐溶解和促进玉米生长的LF-17菌株.
- 研究LAB接种对土壤微生物群落和玉米根球中的酶活动的影响.
- 探索LAB作为可持续农业的潜在生物肥料.
主要方法:
- 在石灰质土壤中种植的玉米苗进行了实验.
- 应用LAB菌株 (LF-17) 并与酸盐溶解细菌 (PSB) 和对照细胞进行比较.
- 分析植物生长指标,土壤含量和酶活动.
- 使用液体染色学-质谱法 (LC-MS) 识别有机酸.
- 高通量元基因组测序来分析微生物社区的结构和功能.
主要成果:
- 实验室注射显著增强了玉米的生长,叶绿素合成和总含量.
- 球土壤在LAB处理中显示性酸酶活性和度增加.
- 甲基因组分析显示,在LAB处理的土壤中,有益的微生物 (如Lysobacter,Limosilactobacillus) 和与代谢相关的酶的丰度增加.
- 与PSB和对照相比,LAB处理导致植物生长指标,含量和酶活性的最高值.
结论:
- 利莫西拉科巴西勒斯 (Limosilactobacillus sp.) 是一种有毒的植物. LF-17有效地溶解酸盐,并在石灰质土壤中促进玉米苗苗的生长.
- 实验室注射剂积极调节树根球微生物群,增强有益的微生物种群和酶功能.
- LAB是微生物肥料的一个有希望的,环保的替代品,为可持续农业做出贡献.
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