Cited by 190Plant Stress Responses and TolerancePlant Reproductive BiologyRice Cultivation and Yield Improvement

Abscisic acid prevents pollen abortion under high‐temperature stress by mediating sugar metabolism in rice spikelets

Rezaul, Islam Md., Baohua, Feng, Tingting, Chen, Weimeng, Fu, Caixia, Zhang, Longxing, Tao, Guanfu, Fu·2019·Physiologia Plantarum

Abstract

Heat stress at the pollen mother cell (PMC) meiotic stage leads to pollen sterility in rice, in which the reactive oxygen species (ROS) and sugar homeostasis are always adversely affected. This damage is reversed by abscisic acid (ABA), but the mechanisms underlying the interactions among the ABA, sugar metabolism, ROS and heat shock proteins in rice spikelets under heat stress are unclear. Two rice genotypes, Zhefu802 (a recurrent parent) and fgl (its near-isogenic line) were subjected to heat stress of 40°C after pre-foliage sprayed with ABA and its biosynthetic inhibitor fluridone at the meiotic stage of PMC. The results revealed that exogenous application of ABA reduced pollen sterility caused by heat stress. This was achieved through various means, including: increased levels of soluble sugars, starch and non-structural carbohydrates, markedly higher relative expression levels of heat shock proteins (HSP24.1 and HSP71.1) and genes related to sugar metabolism and transport, such as sucrose transporters (SUT) genes, sucrose synthase (SUS) genes and invertase (INV) genes as well as increased antioxidant activities and increased content of adenosine triphosphate and endogenous ABA in spikelets. In short, exogenous application of ABA prior to heat stress enhanced sucrose transport and accelerated sucrose metabolism to maintain the carbon balance and energy homeostasis, thus ABA contributed to heat tolerance in rice.

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Crossref · 10.1111/ppl.12759

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  • ABA is critical in preventing pollen abortion under high-temperature stress in rice spikelets.

    “ABA is critical in preventing pollen abortion under high-temperature stress in rice spikelets, and manipulating ABA signaling pathways through gene editing could enhance heat tolerance during critical reproductive stages (Rezaul et al., 2018).”
  • Manipulating ABA signaling pathways through gene editing could enhance heat tolerance during critical reproductive stages.

    “ABA is critical in preventing pollen abortion under high-temperature stress in rice spikelets, and manipulating ABA signaling pathways through gene editing could enhance heat tolerance during critical reproductive stages (Rezaul et al., 2018).”

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Authors
Rezaul, I. M., Baohua, F., Tingting, C., Weimeng, F., Caixia, Z., Longxing, T., & Guanfu, F.
Affiliations
  • China National Rice Research Institute (CN)
  • National Key Laboratory of Rice Biology China National Rice Research Institute Hangzhou 310006 China
Corresponding author
Longxing, Tao
Venue
Physiologia Plantarum
Publisher
Wiley
Published
2018-08-02
Volume
165
Issue
3
Pages
644-663
ISSN
  • 0031-9317 (ISSN-L)
  • 1399-3054
OpenAlex
W2804160724
Cited by
190
References
83
Citations by year
2026: 20 · 2025: 29 · 2024: 22 · 2023: 23 · 2022: 30 · 2021: 23 · 2020: 23 · 2019: 16 · 2018: 3 · 2012: 1
FWCI
14.38
Type
journal article
Language
en
Open access
closed
Locations
  • Physiologia Plantarum (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Natural Science Foundation of Zhejiang Province (LQ18C130003)
  • National Natural Science Foundation of China (31561143003, 31671619)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Stress Responses and Tolerance
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Plant Reproductive Biology
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Rice Cultivation and Yield Improvement
Keywords
abscisic acid, pollen abortion, pollen sterility, heat stress, rice, pollen mother cell meiosis, sugar metabolism, reactive oxygen species, heat shock proteins, sucrose transporters, sucrose synthase, invertase, antioxidant activity, fluridone, carbon balance, heat tolerance
MeSH terms
Abscisic Acid, Plant Proteins, Pollen, Oryza, Temperature, Gene Expression Regulation, Plant, Carbohydrate Metabolism

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