COMMENTARIES

A Ca2+-ROS Signaling Axis in Rice Provides Clues to Rice-pathogen Coevolution and Crop Improvements

Expand
  • State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China

Received date: 2021-09-14

  Accepted date: 2021-09-17

  Online published: 2021-09-30

Abstract

Chinese scientists have made multiple breakthroughs in recent years in rice disease resistance studies, particularly in the areas of durable resistance and resistance-yield coordination. Most recently, a team led by Zuhua He and Weibing Yang at the CAS Center for Excellence in Molecular Plant Sciences made another major advance in our understanding of disease resistance and host-pathogen co-evolution in rice. They showed that the calcium sensor protein ROD1 directly enhances the activity of catalase protein CatB to remove reactive oxygen species during immune responses, preventing excessive immune responses and ensuring optimum rice plant growth. Remarkably, they also illustrated that a functionally attenuated variant of ROD1 is enriched in wild and domesticated Indica rice from tropical and subtropical regions and that this variant allows elevated resistance against sheath blight disease. Importantly, this variant is likely useful for breeding as it does not compromise rice growth and yield. Interestingly, they further demonstrated that an effector protein from the rice blast fungus structurally and functionally mimics ROD1 to suppress rice immunity. Thus, this study uncovers an immune regulatory axis defined by ROD1 and CatB that is at the center of rice-pathogen co-evolution.

Cite this article

Jian-Min Zhou . A Ca2+-ROS Signaling Axis in Rice Provides Clues to Rice-pathogen Coevolution and Crop Improvements[J]. Chinese Bulletin of Botany, 2021 , 56(5) : 513 -515 . DOI: 10.11983/CBB21160

References

[1] Bai SW, Liu J, Chang C, Zhang L, Maekawa T, Wang QY, Xiao WK, Liu YL, Chai JJ, Takken FLW, Schulze-Lefert P, Shen QH (2012). Structure-function analysis of barley NLR immune receptor MLA10 reveals its cell compartment specific activity in cell death and disease resistance. PLoS Pathog 8, e1002752.
[2] Bi GZ, Su M, Li N, Liang Y, Dang S, Xu JC, Hu MJ, Wang JZ, Zou MX, Deng YN, Li QY, Huang SJ, Li JJ, Chai JJ, He KM, Chen YH, Zhou JM (2021). The ZAR1 resistosome is a calcium-permeable channel triggering plant immune signaling. Cell 184, 3528-3541.
[3] Bonman JM, Khush GS, Nelson RJ (1992). Breeding rice for resistance to pests. Annu Rev Phytopathol 30, 507-528.
[4] Deng YW, Zhai KR, Xie Z, Yang DY, Zhu XD, Liu JZ, Wang X, Qin P, Yang YZ, Zhang GM, Li Q, Zhang JF, Wu SQ, Milazzo J, Mao BZ, Wang ET, Xie HA, Tharreau D, He ZH (2017). Epigenetic regulation of antagonistic receptors confers rice blast resistance with yield balance. Science 355, 962-965.
[5] Gao M, He Y, Yin X, Zhong X, Yan B, Wu Y, Chen J, Li X, Zhai K, Huang Y, Gong X, Chang H, Xie S, Liu J, Yue J, Xu J, Zhang G, Deng Y, Wang E, Tharreau D, Wang GL, Yang W, He Z (2021). Ca2+ sensor-mediated ROS scavenging suppresses rice immunity and is exploited by a fungal effector. Cell 184, 5391-5404.
[6] Kadota Y, Sklenar J, Derbyshire P, Stransfeld L, Asai S, Ntoukakis V, Jones JDG, Shirasu K, Menke F, Jones A, Zipfel C (2014). Direct regulation of the NADPH oxidase RBOHD by the PRR-associated kinase BIK1 during plant immunity. Mol Cell 54, 43-55.
[7] Li L, Li M, Yu LP, Zhou ZY, Liang XX, Liu ZX, Cai GH, Gao LY, Zhang XJ, Wang YC, Chen S, Zhou JM (2014). The FLS2-associated kinase BIK1 directly phosphorylates the NADPH oxidase RBOHD to control plant immunity. Cell Host Microbe 15, 329-338.
[8] Li WT, Zhu ZW, Chern M, Yin JJ, Yang C, Ran L, Cheng MP, He M, Wang K, Wang J, Zhou XG, Zhu XB, Chen ZX, Wang JC, Zhao W, Ma BT, Qin P, Chen WL, Wang YP, Liu JL, Wang WM, Wu XJ, Li P, Wang JR, Zhu LH, Li SG, Chen XW (2017). A natural allele of a transcription factor in rice confers broad-spectrum blast resistance. Cell 170, 114-126.
[9] Park CH, Chen SB, Shirsekar G, Zhou B, Khang CH, Songkumarn P, Afzal AJ, Ning YS, Wang RY, Bellizzi M, Valent B, Wang GL (2012). The Magnaporthe oryzae effector AvrPiz-t targets the RING E3 Ubiquitin Ligase APIP6 to suppress pathogen-associated molecular pat-tern-triggered immunity in rice. Plant Cell 24, 4748-4762.
[10] Wang J, Zhou L, Shi H, Chern M, Yu H, Yi H, He M, Yin JJ, Zhu XB, Li Y, Li WT, Liu JL, Wang JC, Chen XQ, Qing H, Wang YP, Liu GF, Wang WM, Li P, Wu XJ, Zhu LH, Zhou JM, Ronald PC, Li SG, Li JY, Chen XW (2018). A single transcription factor promotes both yield and immunity in rice. Science 361, 1026-1028.
[11] Yuan HM, Liu WC, Lu YT (2017). CATALASE2 coordinates SA-mediated repression of both auxin accumulation and JA biosynthesis in plant defenses. Cell Host Microbe 21, 143-155.
Outlines

/