土壤盐分：一个严重的环境问题和促进植物生长的细菌 作为其缓解工具之一

普加 斯利, 拉杰 什·
德里大学

摘要

盐分是限制农作物生产力的最残酷的环境因素之一，因为大多数农作物对土壤中高浓度盐分引起的盐分敏感，
受盐分影响的土地面积日益增加。对于所有重要作物，平均产量只是其中的一小部分——在创纪录产量的 20% 到 50%
之间；这些损失主要是由于干旱和高土壤盐分造成的，由于全球气候变化，许多地区的环境条件将恶化。需要广泛的
适应和缓解战略来应对这些影响。有效的资源管理和作物/牲畜改良以发展更好的品种有助于克服盐分压力。然而，这
种策略是长期制定且成本密集的，因此需要开发用于盐分胁迫管理的简单且低成本的生物方法，该方法可在短期基础
上使用。如果我们利用微生物的独特特性，例如对盐碱条件的耐受性、遗传多样性、相容溶质的合成、植物生长促进
激素的产生、生物防治潜力以及它们与农作物的相互作用，微生物可以在这方面发挥重要作用。

关键词

盐度、耐盐性、PGPR、微生物

参考

[1] Ahmad M., Zahir Zahir A., Naeem Asghar H., Asghar M. Inducing salt tolerance in mung bean through

coinoculation with rhizobia and plant-growth-promoting

rhizobacteria containing 1-aminocyclopropane-1-carboxylate

deaminase. Can. J. Microbiol. 2011;57(7):578–589. [2] Ahmad M., Zahir Z.A., Asghar H.N., Arshad M. The combined application of rhizobial strains and plant growth

promoting rhizobacteria improves growth and productivity of

mung bean (Vigna radiata L.) under salt-stressed conditions. Ann. Microbiol. 2012;62:1321–1330. [3] Ahmad M., Zahir Zahir A., Nazli Farheen, Akram

Fareeha, Muhammad Arshad Khalid M. Effectiveness of

halo-tolerant, auxin producing pseudomonas and Rhizobium

strains to improve osmotic stress tolerance in mung bean

(Vigna radiata L.) Braz. J. Microbiol. 2013;44(4):1341–1348. [4] Akbarimoghaddam H., Galavi M., Ghanbari A., Panjehkeh N. Salinity effects on seed germination and

seedling growth of bread wheat cultivars. Trakia J. Sci. 2011;9(1):43–50.

[5] Ashraf M. Some important physiological selection

criteria for salt tolerance in plants. Flora. 2004;199:361–376. [6] Jobbágy EG, Jackson RB. The vertical

distribution of soil organic carbon and its relation to climate

and vegetation. Ecol. Appl. 2000;10:423 – 436. doi:

10.1890/1051-0761(2000)010[0423:TVDOSO]2.0.CO;2. [7] Liu H, et al. Interactive effects of microplastics and

glyphosate on the dynamics of soil dissolved organic matter in

a Chinese loess soil. CATENA. 2019;182:104177. doi:

10.1016/j.catena.2019.104177. [8] Orgill SE, et al. Parent material and climate affect

soil organic carbon fractions under pastures in south-eastern

Australia. Soil Res. 2017;55:799 – 808. doi:

10.1071/SR16305. [9] Zhang Q, et al. Higher soil acidification risk in

southeastern Tibetan Plateau. Sci. Total Environ. 2021;755:143372. doi: 10.1016/j.scitotenv.2020.143372. [10] Zhu J, Wu A, Zhou G. Spatial distribution patterns

of soil total phosphorus influenced by climatic factors in

China's forest ecosystems. Sci. Rep. 2021;11:5357. doi:

10.1038/s41598-021-84166-0.