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Targeted mutagenesis of POLYAMINE OXIDASE 5 that negatively regulates mesocotyl elongation enables the generation of direct-seeding rice with improved grain yield.

Molecular plant - 1 Feb 2021

Lv Yusong, Shao Gaoneng, Jiao Guiai, Sheng Zhonghua, Xie Lihong, Hu Shikai, Tang Shaoqing, Wei Xiangjin, Hu Peisong

Abstract excerpt

Under conditions of labor or resource scarcity, direct seeding, rather than transplantation, is the preferred mode of rice (Oryza sativa) cultivation. This approach requires varieties that exhibit uniform seedling emergence. Mesocotyl elongation (ME), the main driver of rapid emergence of rice seedlings from soil, is enhanced by darkness and inhibited by light. Plant polyamine oxidases (PAOs) oxidize polyamines...

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PMID: 33220510
DOI: 10.1016/j.molp.2020.11.007

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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