Progresses in biosynthesis pathway, regulation mechanism and potential application of 2-acetyl-1-pyrroline in fragrant rice

IF 6.1 2区生物学 Q1 PLANT SCIENCES

Plant Physiology and Biochemistry Pub Date : 2024-08-14 DOI:10.1016/j.plaphy.2024.109047

引用次数: 0

Abstract

The formation of rice aroma is a complex process that is influenced by genetic and environmental factors. More than 500 fragrance compounds have been documented in fragrant rice, among which 2-AP dominates the aroma of rice. This paper introduced the identification of OsBadh2 in the biosynthesis of 2-AP in rice. Then, non-enzymatic and enzymatic pathways of the 2-AP biosynthesis have been comprehensively investigated. In detail, 2-AP biosynthesis-associated enzyme, such as OsBADH2, OsP5CS, OsGAD, OsGAPDH, OsProDH, OsOAT, OsODC and OsDAO, have been summarized, while MG and fatty acids are also implicated in modulating the biosynthesis of 2-AP by providing the acetyl groups. Moreover, extensive collections of traditional fragrant rice varieties have been collated, together with the OsBadh2 haplotypes of 312 fragrant rice germplasm in China. And finally, genetic engineering of OsBadh2 and other genes in the 2-AP biosynthesis to develop fragrant rice are discussed.

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香稻中 2-乙酰基-1-吡咯啉的生物合成途径、调控机制及潜在应用研究进展

稻米香气的形成是一个复杂的过程，受到遗传和环境因素的影响。在香米中已记录了 500 多种香味化合物，其中 2-AP 在水稻香味中占主导地位。本文介绍了 OsBadh2 在水稻 2-AP 生物合成过程中的鉴定。然后，对 2-AP 生物合成的非酶和酶途径进行了全面研究。详细总结了与 2-AP 生物合成相关的酶，如 OsBADH2、OsP5CS、OsGAD、OsGAPDH、OsProDH、OsOAT、OsODC 和 OsDAO，而 MG 和脂肪酸也通过提供乙酰基参与调节 2-AP 的生物合成。此外，还整理了大量传统香稻品种，以及中国 312 份香稻种质的 OsBadh2 单倍型。最后，还讨论了通过对 OsBadh2 和 2-AP 生物合成过程中的其他基因进行基因工程改造来培育香稻的问题。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Plant Physiology and Biochemistry 生物-植物科学

CiteScore

11.10

自引率

3.10%

发文量

410

审稿时长

33 days

期刊介绍： Plant Physiology and Biochemistry publishes original theoretical, experimental and technical contributions in the various fields of plant physiology (biochemistry, physiology, structure, genetics, plant-microbe interactions, etc.) at diverse levels of integration (molecular, subcellular, cellular, organ, whole plant, environmental). Opinions expressed in the journal are the sole responsibility of the authors and publication does not imply the editors'' agreement. Manuscripts describing molecular-genetic and/or gene expression data that are not integrated with biochemical analysis and/or actual measurements of plant physiological processes are not suitable for PPB. Also "Omics" studies (transcriptomics, proteomics, metabolomics, etc.) reporting descriptive analysis without an element of functional validation assays, will not be considered. Similarly, applied agronomic or phytochemical studies that generate no new, fundamental insights in plant physiological and/or biochemical processes are not suitable for publication in PPB. Plant Physiology and Biochemistry publishes several types of articles: Reviews, Papers and Short Papers. Articles for Reviews are either invited by the editor or proposed by the authors for the editor''s prior agreement. Reviews should not exceed 40 typewritten pages and Short Papers no more than approximately 8 typewritten pages. The fundamental character of Plant Physiology and Biochemistry remains that of a journal for original results.

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