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Plasma membrane H⁺-ATPase overexpression increases rice yield via simultaneous enhancement of nutrient uptake and photosynthesis.

ABSTRACT: Nitrogen (N) and carbon (C) are essential elements for plant growth and crop yield. Thus, improved N and C utilisation contributes to agricultural productivity and reduces the need for fertilisation. In the present study, we find that overexpression of a single rice gene, Oryza sativa plasma membrane (PM) H⁺-ATPase 1 (OSA1), facilitates ammonium absorption and assimilation in roots and enhanced light-induced stomatal opening with higher photosynthesis rate in leaves. As a result, OSA1 overexpression in rice plants causes a 33% increase in grain yield and a 46% increase in N use efficiency overall. As PM H⁺-ATPase is highly conserved in plants, these findings indicate that the manipulation of PM H⁺-ATPase could cooperatively improve N and C utilisation, potentially providing a vital tool for food security and sustainable agriculture.

SUBMITTER: Zhang M

PROVIDER: S-EPMC7854686 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature

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Plasma membrane H<sup>+</sup>-ATPase overexpression increases rice yield via simultaneous enhancement of nutrient uptake and photosynthesis.

Zhang Maoxing M Wang Yin Y Chen Xi X Xu Feiyun F Ding Ming M Ye Wenxiu W Kawai Yuya Y Toda Yosuke Y Hayashi Yuki Y Suzuki Takamasa T Zeng Houqing H Xiao Liang L Xiao Xin X Xu Jin J Guo Shiwei S Yan Feng F Shen Qirong Q Xu Guohua G Kinoshita Toshinori T Zhu Yiyong Y

Nature communications 20210202 1

Nitrogen (N) and carbon (C) are essential elements for plant growth and crop yield. Thus, improved N and C utilisation contributes to agricultural productivity and reduces the need for fertilisation. In the present study, we find that overexpression of a single rice gene, Oryza sativa plasma membrane (PM) H<sup>+</sup>-ATPase 1 (OSA1), facilitates ammonium absorption and assimilation in roots and enhanced light-induced stomatal opening with higher photosynthesis rate in leaves. As a result, OSA1 ...[more]

PMID: 33531490

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Project description:Meeting the ever-increasing food demands of a growing global population while ensuring resource and environmental sustainability presents significant challenges for agriculture worldwide. Arbuscular mycorrhizal symbiosis (AMS) has emerged as a potential solution by increasing the surface area of a plant's root system and enhancing the absorption of phosphorus, nitrogen nutrients, and water. Consequently, there is a longstanding hypothesis that rice varieties exhibiting more efficient AMS could yield higher outputs at reduced input costs, paving the way for the development of Green Super Rice (GSR). Our prior research study identified a variant, OsCERK1DY, derived from Dongxiang wild-type rice, which notably enhanced AMS efficiency in the rice cultivar "ZZ35." This variant represents a promising gene for enhancing yield and nutrient use efficiency in rice breeding. In this study, we conducted a comparative analysis of biomass, crop growth characteristics, yield attributes, and nutrient absorption at varying soil nitrogen levels in the rice cultivar "ZZ35" and its chromosome single-segment substitution line, "GJDN1." In the field, GJDN1 exhibited a higher AM colonization level in its roots compared with ZZ35. Notably, GJDN1 displayed significantly higher effective panicle numbers and seed-setting rates than ZZ35. Moreover, the yield of GJDN1 with 75% nitrogen was 14.27% greater than the maximum yield achieved using ZZ35. At equivalent nitrogen levels, GJDN1 consistently outperformed ZZ35 in chlorophyll (Chl) content, dry matter accumulation, major nutrient element accumulation, N agronomic efficiency (NAE), N recovery efficiency (NRE), and N partial factor productivity (NPFP). The performance of OsCERK1DY overexpression lines corroborated these findings. These results support a model wherein the heightened level of AMS mediated by OsCERK1DY contributes to increased nitrogen, phosphorus, and potassium accumulation. This enhancement in nutrient utilization promotes higher fertilizer efficiency, dry matter accumulation, and ultimately, rice yield. Consequently, the OsCERK1DY gene emerges as a robust candidate for improving yield, reducing fertilizer usage, and facilitating a transition towards greener, lower-carbon agriculture.Supplementary informationThe online version contains supplementary material available at 10.1007/s11032-024-01459-8.

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Plasma membrane H⁺-ATPase overexpression increases rice yield via simultaneous enhancement of nutrient uptake and photosynthesis.

Publications

Plasma membrane H<sup>+</sup>-ATPase overexpression increases rice yield via simultaneous enhancement of nutrient uptake and photosynthesis.

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Plasma membrane H+-ATPase overexpression increases rice yield via simultaneous enhancement of nutrient uptake and photosynthesis.

Publications

Plasma membrane H<sup>+</sup>-ATPase overexpression increases rice yield via simultaneous enhancement of nutrient uptake and photosynthesis.

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OmicsDI is part of the ELIXIR infrastructure

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Plasma membrane H⁺-ATPase overexpression increases rice yield via simultaneous enhancement of nutrient uptake and photosynthesis.