查和识别有益的土壤细菌:评估注射对有机物和无机物植物生长的影响
Shokufeh Moradi1, Mohammad Reza Sarikhani2
1Department of Soil Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran.
概括
促进植物生长的细菌 (PGPB) 和有机物质增强了玉米的生长. 恩西弗特种类 恩西弗特种类 3MDP-1注射显著增加了植物生物质,高度和叶绿素,而肥的添加进一步改善了结果.
科学领域:
- 农业科学 农业科学
- 微生物学 微生物学
- 土壤科学 土壤科学
背景情况:
- 促进植物生长的细菌 (PGPB) 通过营养的可用性,植物激素的产生和耐压力来提高作物生产率.
- PGPB和有机物对植物生长的联合影响需要进一步研究.
研究的目的:
- 研究特定植物生长促进细菌和有机物 () 对玉米生长的协同作用.
- 确定具有优越植物生长促进性质的PGPB.
主要方法:
- 对PGPB进行查,以检测酸盐溶解度,auxin和释放.
- 温室实验使用一个因数式,完全随机的设计,使用玉米,PGPB接种和肥添加.
- 测量植物生长参数:新鲜/干燥重量 (根/芽),植物高度,茎直径和叶绿素指数.
主要成果:
- 细菌2MDP-1的酸盐溶解度 (42.46 mg/L) 和auxin产量 (3.36 mg/L) 最高;阿佐托巴克特3MDP-4的释放量最高 (6.73 mg/L).
- 所有生长参数在注射治疗中明显高于负对照.
- 恩西弗特种类 恩西弗特种类 3MDP-1显著增加了芽干重量 (2.8倍),根干重量 (2.4倍),植物高度 (29%),以及叶绿素指数 (2.4倍).
- 肥料添加显著提高了所有参数,与细菌注射的显著相互作用仅观察到根干重和百分比.
结论:
- 接种 PGPB 疫苗,特别是 Ensifer sp. 的疫苗. 3MDP-1显著增强了玉米的生长.
- 有机物质的添加进一步改善了玉米的生长,在细菌注射中观察到一些协同效应.
- 细菌对树叶圈的殖民和根液的利用可能是推动植物生长促进的关键机制.
更多相关视频
08:21Isolation and Screening from Soil Biodiversity for Fungi Involved in the Degradation of Recalcitrant Materials
Published on: May 16, 2022
5.1K
13:38Isolation of Native Soil Microorganisms with Potential for Breaking Down Biodegradable Plastic Mulch Films Used in Agriculture
Published on: May 10, 2013
30.8K
相关概念视频
Environmental Applications of Microorganisms
242
Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...
242
The Roles of Bacteria and Fungi in Plant Nutrition
41.0K
Plants have the impressive ability to create their own food through photosynthesis. However, plants often require assistance from organisms in the soil to acquire the nutrients they need to function correctly. Both bacteria and fungi have evolved symbiotic relationships with plants that help the species to thrive in a wide variety of environments.
41.0K
