外生菌根与植物相互作用对退化土地生物修复的影响

IF 1.1 4区综合性期刊 Q3 MULTIDISCIPLINARY SCIENCES

Current Science Pub Date : 2022-12-25 DOI:10.18520/cs/v123/i12/1481-1485

S. Arenla, J. Seb, T. -

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引用次数: 0

摘要

细胞外酶将复杂的有机化合物降解为可溶物质，并使其为植物所利用。这些酶在土壤养分循环中起重要作用，而外生菌根真菌是这些酶的重要来源。本研究以印度那加兰邦和东喜马拉雅地区的土生龙果(Dipterocarpus retusus)幼苗和未接种的龙果龙果(Russula rosesea)幼苗分别接种柠檬硬皮病(Scleroderma citrium)和玫瑰硬皮病(Russula rosesea)外生菌根真菌。对幼苗根际土壤脲酶、脱氢酶等酶和氮含量进行了分析。黄曲霉接种后的幼苗根际土壤和根表面脲酶和脱氢酶活性较高，氮含量较高。枸杞接种后的幼苗碳水化合物含量较高。外生菌根定植量与碳水化合物含量呈显著相关。结果表明，在育苗过程中，柑橘葡萄球菌与褐皮霉在荒地土壤中具有较好的养分获取效果。

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Ectomycorrhizal and plant interaction on bioremediation of degraded land

Extracellular enzymes degrade complex organic compounds into soluble substances and make them available for the plants. These are important for nutrient cycling in soil and ectomycorrhizal fungi (ECM) are important source for these enzymes. In the present study, Dipterocarpus retusus seedlings native to Nagaland and Eastern Himalaya were inoculated with Scleroderma citrinum and Russula rosea ectomycorrhizal fungi along with un-inoculated seedlings. Soil enzymes like urease and dehydrogenase and nitrogen content were analyzed in rhizosphere region of seedlings. S. citrinum inoculated seedlings produced higher urease and dehydrogenase activity in rhizospheric soil and root surfaces and produced higher nitrogen content. Higher amount of carbohydrate content was observed in S. citrinum inoculated seedlings. Significant relation was found between ectomycorrhizal colonization and carbohydrate content. S. citrinum fungus was found to be more effective symbiont with D. retusus seedlings during nursery practices for nutrient acquisition in waste land soil.

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来源期刊

Current Science 综合性期刊-综合性期刊

CiteScore

1.50

自引率

10.00%

发文量

审稿时长

3 months

期刊介绍： Current Science, published every fortnight by the Association, in collaboration with the Indian Academy of Sciences, is the leading interdisciplinary science journal from India. It was started in 1932 by the then stalwarts of Indian science such as CV Raman, Birbal Sahni, Meghnad Saha, Martin Foster and S.S. Bhatnagar. In 2011, the journal completed one hundred volumes. The journal is intended as a medium for communication and discussion of important issues that concern science and scientific activities. Besides full length research articles and shorter research communications, the journal publishes review articles, scientific correspondence and commentaries, news and views, comments on recently published research papers, opinions on scientific activity, articles on universities, Indian laboratories and institutions, interviews with scientists, personal information, book reviews, etc. It is also a forum to discuss issues and problems faced by science and scientists and an effective medium of interaction among scientists in the country and abroad. Current Science is read by a large community of scientists and the circulation has been continuously going up. Current Science publishes special sections on diverse and topical themes of interest and this has served as a platform for the scientific fraternity to get their work acknowledged and highlighted. Some of the special sections that have been well received in the recent past include remote sensing, waves and symmetry, seismology in India, nanomaterials, AIDS, Alzheimer''s disease, molecular biology of ageing, cancer, cardiovascular diseases, Indian monsoon, water, transport, and mountain weather forecasting in India, to name a few. Contributions to these special issues ‘which receive widespread attention’ are from leading scientists in India and abroad.