JOURNAL ARTICLE

Regulatory network of the late-recruited primary decarboxylase C4NADP-ME in sugarcane.

  • Published In: Plant Physiology, 2024, v. 196, n. 4. P. 2685 1 of 3

  • Database: Academic Search Ultimate 2 of 3

  • Authored By: Hua, Xiuting; Shi, Huihong; Zhuang, Gui; Lan, Yuhong; Zhou, Shaoli; Zhao, Dongxu; Lyu, Ming-Ju Amy; Akbar, Sehrish; Liu, Jia; Yuan, Yuan; Li, Zhen; Jiang, Qing; Huang, Kaixin; Zhang, Yating; Zhang, Qing; Wang, Gang; Wang, Yu; Yu, Xiaomin; Li, Pinghua; Zhang, Xingtan 3 of 3

Abstract

This article investigates the regulatory network of the NADP-malate enzyme (C4NADP-ME), a key decarboxylase in the C4 photosynthetic pathway of sugarcane (Saccharum spontaneum). Through enzymatic assays, comparative genomics, transcriptomics, and yeast one-hybrid (Y1H) experiments, the study confirms that NADP-ME is the primary decarboxylase in S. spontaneum, similar to sorghum (Sorghum bicolor) and maize (Zea mays), but with distinct transcription factor (TF) regulation. The basic leucine zipper (bZIP) family TF ABA INSENSITIVE5 (ABI5) was identified as a predominant regulator binding to a conserved G-box cis-element in the SsC4NADP-ME2 promoter, suggesting an ancient regulatory mechanism shared across C3 and C4 grasses. These findings elucidate the molecular regulation of C4NADP-ME in sugarcane, providing insights relevant for optimizing C4 photosynthesis and bioenergy crop improvement.

Additional Information

  • Source:Plant Physiology. 2024/12, Vol. 196, Issue 4, p2685
  • Document Type:Article
  • Subject Area:Agriculture and Agribusiness
  • Publication Date:2024
  • ISSN:0032-0889
  • DOI:10.1093/plphys/kiae455
  • Accession Number:183846978
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