Tolerance of Oryza sativa to low phosphate is associated with adaptive changes in root architecture and metabolic exudates

IF 4.2 2区生物学 Q2 BIOCHEMISTRY & MOLECULAR BIOLOGY

Plant Science Pub Date : 2025-02-03 DOI:10.1016/j.plantsci.2025.112415

Akanksha Srivastava , Amber Gupta , Sujit K. Bishi , Pole Akhila , P.C. Latha , D. Subrahmanyam , P. Brajendra , M.S. Anantha , Suvarna Rani Ch , Akshay S. Sakhare , Vijai Pal Bhadana , Jitender Giri , C.N. Neeraja , R.M. Sundaram , Satendra K. Mangrauthia

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引用次数: 0

Abstract

The optimum usage of fertilizers is key for the sustainable agriculture. Among nutrients, phosphorus (P) is critical for plant growth and development. Due to complete reliance on natural resources (rock phosphate) for P, the availability of P fertilizers is emerging as a global challenge for crop cultivation. Moreover, the excess application of P fertilizers in rice, mostly grown under flooded conditions, leads to water pollution called eutrophication. In this study, we employed a mutagenesis approach for developing and characterizing rice EMS (ethyl methanesulfonate) mutants with better adaptation to low soil P conditions. One such mutant of rice cultivar Nagina 22, named NH4824, was characterized comprehensively at seedling and reproductive growth stages under hydroponic and field conditions. The mutant exhibits low soil P tolerance due to combined adaptive changes in root system architecture, anatomy, organic acid exudates, plasma membrane (PM) H⁺-ATPase activity, induced expression of P transporter genes, and efficient mobilization and partitioning of P in different plant tissues. The activity of antioxidant enzymes and better photosynthesis suggested relatively less stress experienced by NH4824 than N22 under low soil P conditions. These insights are highly useful to develop P use efficient crop cultivars through breeding or genome editing approaches.

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来源期刊

Plant Science 生物-生化与分子生物学

CiteScore

9.10

自引率

1.90%

发文量

322

审稿时长

33 days

期刊介绍： Plant Science will publish in the minimum of time, research manuscripts as well as commissioned reviews and commentaries recommended by its referees in all areas of experimental plant biology with emphasis in the broad areas of genomics, proteomics, biochemistry (including enzymology), physiology, cell biology, development, genetics, functional plant breeding, systems biology and the interaction of plants with the environment. Manuscripts for full consideration should be written concisely and essentially as a final report. The main criterion for publication is that the manuscript must contain original and significant insights that lead to a better understanding of fundamental plant biology. Papers centering on plant cell culture should be of interest to a wide audience and methods employed result in a substantial improvement over existing established techniques and approaches. Methods papers are welcome only when the technique(s) described is novel or provides a major advancement of established protocols.