Amino Acid Transporter OsAAP18 Modulates Nitrogen Allocation to Boost Yield and Grain Quality in Rice

He Chongchong, Yang Xiaochuan, Zhang Jie, Wu Wenhao, Wang Chuanbo, Chen Wenbo, Wu Bowen, Huang Weiting, Fang Zhongming

doi:10.1016/j.rsci.2026.01.005

Rice Science >

2026 , Vol. 33 >Issue 2: 151 - 154

DOI: https://doi.org/10.1016/j.rsci.2026.01.005

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Amino Acid Transporter OsAAP18 Modulates Nitrogen Allocation to Boost Yield and Grain Quality in Rice

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Institute of Rice Industry Technology Research / Key Laboratory of Functional Agriculture of Guizhou Provincial Higher Education Institution / Key Laboratory of High Quality, High Efficiency, and Yield Enhancement in Grain and Oil Crops / Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education) / College of Agricultural Sciences, Guizhou University, Guiyang 550025, China

^#These authors contributed equally to this work

Fang Zhongming (zmfang@gzu.edu.cn);
Huang Weiting (406789670@qq.com)

Received date: 2025-12-09

Accepted date: 2026-01-29

Online published: 2026-02-02

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He Chongchong, Yang Xiaochuan, Zhang Jie, Wu Wenhao, Wang Chuanbo, Chen Wenbo, Wu Bowen, Huang Weiting, Fang Zhongming . Amino Acid Transporter OsAAP18 Modulates Nitrogen Allocation to Boost Yield and Grain Quality in Rice[J]. Rice Science, 2026 , 33(2) : 151 -154 . DOI: 10.1016/j.rsci.2026.01.005

References

[1]	Duan J B, Yu H, Yuan K, et al. 2019. Strigolactone promotes cytokinin degradation through transcriptional activation of CYTOKININ OXIDASE/DEHYDROGENASE 9 in rice. Proc Natl Acad Sci USA, 116(28): 14319-14324.
[2]	Eom J S, Cho J I, Reinders A, et al. 2011. Impaired function of the tonoplast-localized sucrose transporter in rice, OsSUT2, limits the transport of vacuolar reserve sucrose and affects plant growth. Plant Physiol, 157(1): 109-119.
[3]	He C C, Amin B, Liu X, et al. 2025. Amino acid transporter OsAAP8 mediates rice tillering and height by regulating the transport of neutral amino acids. Plant Physiol Biochem, 229: 110452.
[4]	Jiang S, Jin X M, Liu Z B, et al. 2024. Natural variation in SSW1 coordinates seed growth and nitrogen use efficiency in Arabidopsis. Cell Rep, 43(5): 114150.
[5]	Ji Y Y, Huang W T, Wu B W, et al. 2020. The amino acid transporter AAP1 mediates growth and grain yield by regulating neutral amino acid uptake and reallocation in Oryza sativa. J Exp Bot, 71(16): 4763-4777.
[6]	Lu K, Wu B W, Wang J, et al. 2018. Blocking amino acid transporter OsAAP3 improves grain yield by promoting outgrowth buds and increasing tiller number in rice. Plant Biotechnol J, 16(10): 1710-1722.
[7]	Ma F Y, Zhang F, Zhu Y, et al. 2023. Auxin signaling module OsSK41-OsIAA10-OsARF regulates grain yield traits in rice. J Integr Plant Biol, 65(7): 1753-1766.
[8]	Song X J, Huang W, Shi M, et al. 2007. A QTL for rice grain width and weight encodes a previously unknown RING-type E3 ubiquitin ligase. Nat Genet, 39(5): 623-630.
[9]	Tabuchi M, Sugiyama K, Ishiyama K, et al. 2005. Severe reduction in growth rate and grain filling of rice mutants lacking OsGS1;1, a cytosolic glutamine synthetase1;1. Plant J, 42(5): 641-651.
[10]	Wang A Q, Jing Y H, Cheng Q, et al. 2023. Loss of function of SSIIIa and SSIIIb coordinately confers high RS content in cooked rice. Proc Natl Acad Sci USA, 120(19): e2220622120.
[11]	Wang J, Wu B W, Lu K, et al. 2019. The amino acid permease 5 (OsAAP5) regulates tiller number and grain yield in rice. Plant Physiol, 180(2): 1031-1045.
[12]	Wang S Y, Yang Y H, Guo M, et al. 2020. Targeted mutagenesis of amino acid transporter genes for rice quality improvement using the CRISPR/Cas 9 system. Crop J, 8(3): 457-464.
[13]	Zhang W, Peng K X, Cui F B, et al. 2021. Cytokinin oxidase/ dehydrogenase OsCKX11 coordinates source and sink relationship in rice by simultaneous regulation of leaf senescence and grain number. Plant Biotechnol J, 19(2): 335-350.

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