Biopriming with Piriformospora indica ameliorates cadmium stress in rice by lowering oxidative stress and cell death in root cells.

Autor: Dabral S; Amity Institute of Microbial Technology, Amity University Uttar Pradesh, Sector 125, Noida, 201313, India., Yashaswee; Amity Institute of Microbial Technology, Amity University Uttar Pradesh, Sector 125, Noida, 201313, India., Varma A; Amity Institute of Microbial Technology, Amity University Uttar Pradesh, Sector 125, Noida, 201313, India., Choudhary DK; Amity Institute of Microbial Technology, Amity University Uttar Pradesh, Sector 125, Noida, 201313, India. Electronic address: dkchoudhary1@amity.edu., Bahuguna RN; Amity Institute of Microbial Technology, Amity University Uttar Pradesh, Sector 125, Noida, 201313, India; Center for Advance Studies on Climate Change, Dr. Rajendra Prasad Central Agricultural University, Pusa, Samastipur, Bihar, 848125, India. Electronic address: r.bahuguna15@gmail.com., Nath M; Amity Institute of Microbial Technology, Amity University Uttar Pradesh, Sector 125, Noida, 201313, India; ICAR-Directorate of Mushroom Research, Chambaghat, Solan, Himachal Pradesh, 173213, India. Electronic address: manojnath24@gmail.com.
Jazyk: angličtina
Zdroj: Ecotoxicology and environmental safety [Ecotoxicol Environ Saf] 2019 Dec 30; Vol. 186, pp. 109741. Date of Electronic Publication: 2019 Oct 07.
DOI: 10.1016/j.ecoenv.2019.109741
Abstrakt: Piriformospora indica is known for plant growth promotion and abiotic stress alleviation potential in several agricultural crops. However, a systemic analysis is warranted to explore potential application of this important fungus to augment heavy metal tolerance in rice. The present study explores potential of P. indica in ameliorating the effect of cadmium (Cd) stress in rice cultivars N22 and IR64. Seedlings inoculated with P. indica recorded significantly higher root-shoot length and biomass as compared to non-inoculated plants under control and Cd stress, respectively. Moreover, P. indica inoculated stressed roots accumulated more Cd as compared to non-inoculated stressed roots in both the varieties. Interestingly, cell death and reactive oxygen species (ROS) accumulation were significantly lower in the inoculated plant roots as compare with non-inoculated roots under Cd stress. The results emphasized significantly higher accumulation of Cd in fungal spores could reduce ROS accumulation in root cells resulting in lower cell death.
(Copyright © 2019 Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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