The Dispute About CHLH Being an ABA Receptor

Abstract

Abstract: Mg-chelatase H subunit（CHLH）is a key enzyme involved in chlorophyll synthesis. Since CHLH was proved to be an ABA receptor in Arabidopsis in 2006, the relation between CHLH and ABA signal transduction has been reported in barley, sweet cherry, strawberry and peach, but whether CHLH acts as an actual ABA receptor remains controversial. This paper summarizesd the research on the relation between CHLH and ABA signal transduction, focused on the dispute about whether CHLH acts as an ABA receptor and advances of CHLH in perception and transduction of the ABA signals.

Key words: ABA, Mg-chelatase H subunit（CHLH）, Receptor

Ren Jie,Leng Ping,Sun Fushan,Xu Xiuhong. The Dispute About CHLH Being an ABA Receptor[J]. Biotechnology Bulletin, 2013, 0(7): 7-11.

References

[1] Coombe BG, Hale CR. The hormone content of ripening grape berries and the effects of growth substance treatments[J]. Plant Physiol, 1973, 51：629-634.
[2] Kondo S, Gemma H. Relationship between abscisic acid（ABA）content and maturation of the sweet cherry[J]. J Jpn Soc Hortic Sci, 1993, 62：63-68.
[3] Zhang M, Yuan B, Leng P. The role of ABA in triggering ethylene biosynthesis and ripening of tomato fruit[J]. J Exp Bot, 2009, 60：1579-1588.
[4] Zhang M, Leng P, Zhang GL, et al. Cloning and functional analysis of 9-cis-epoxycarotenoid dioxygenase（NCED）genes encoding a key enzyme during abscisic acid biosynthesis from peach and grape fruits[J]. J Plant Physiol, 2009, 166：1241-1252.
[5] 任杰, 冷平. ABA和乙烯与甜樱桃果实成熟的关系[J].园艺学报, 2010, 37（2）：199-206.
[6] Finkelstein RR, Gampala S, Rock C. Abscisic acid signaling in seeds and seedlings[J]. Plant Cell, 2002, 14：S15-S45.
[7] Adie BA, Pérez-Pérez J, Pérez-Pérez MM, et al. ABA is an essential signal for plant resistance to pathogens affecting JA biosynthesis and the activation of defenses in Arabidopsis[J]. Plant Cell, 2007, 19：1665-1681.
[8] Wang XF, Zhang DP. Abscisic acid receptors：multiple signal perception sites[J]. Ann Bot, 2007, 101：311-317.
[9] Liu X, Yue Y, Li B, et al. A G protein-coupled receptor is a plasma membrane receptor for the plant hormone abscisic acid[J]. Science, 2007, 315：1712-1716.
[10] Pandey S, Nelson DC, Assmann SM. Two novel GPCR-type G proteins are abscisic acid receptors in Arabidopsis[J]. Cell, 2009, 136：136-148.
[11] Fujii H, Chinnusamy V, Rodrigues A, et al. In vitro reconstitution of an abscisic acid signaling pathway[J]. Nature, 2009, 462：660-664.
[12] Ma Y, Szostkiewicz I, Korte A, et al. Regulators of PP2C phosphatase activity function as abscisic acid sensors[J]. Science, 2009, 324：1064-1068.
[13] Park SY, Fung P, Nishimura N, et al. Abscisic acid inhibits type 2C protein phosphatases via the PYR/PYL family of START proteins[J]. Science, 2009, 324：1068-1071.
[14] Shen YY, Wang XF, Wu FQ, et al. The Mg-chelatase H subunit is an abscisic acid receptor[J]. Nature, 2006, 443：823-826.
[15] Wu FQ, Xin Q, Cao Z, et al. The magnesium-chelatase H subunit binds abscisic acid and functions in abscisic acid signaling：new evidence in Arabidopsis[J]. Plant Physiol, 2009, 150：1940-1954.
[16] ShangY, Yan L, Liu ZQ, et al. The Mg-chelatase H subunit of Arabidopsis antagonizes a group of WRKY transcription repressors to relieve ABA-responsive genes of inhibition[J]. Plant Cell, 2010, 22：1909-1935.
[17] Gibson LCD, Marrison JL, Leech RM, et al. A putative Mg chelatase subunit from Arabidopsis thaliana cv C24. Sequence and transcript analysis of the gene, import of the protein into chloroplasts, and in situ localization of the transcript and protein[J]. Plant Physiol, 1996, 111：61-71.
[18] Guo RB, Luo MZ, Weinstein JD. Magnesiumchelatase from developing pea leaves[J]. Plant Physiol, 1998, 116：605-615.
[19] Papenbrock J, Mock HP, Tanaka R, et al. Role of magnesium chelatase activity in the early steps of the tetrapyrrole biosynthetic pathway[J]. Plant Physiol, 2000, 122：1161-1170.
[20] Mochizuki N, Brusslan JA, Larkin R, et al. Arabidopsis genomes uncoupled 5（GUN5）mutant reveals the involvement of Mg-chelatase H subunit in plastid-to-nucleus signal transduction[J]. Proc Natl Acad Sci USA, 2001, 98：2053-2058.
[21] Nott A, Jung HS, Koussevitzky S, Chory J. Plastid-to-nucleus retrograde signaling[J]. Annu Rev Plant Biol, 2006, 57：739-759.
[22] Müller AH, Hansson M. The barley magnesium chelatase 150-kD subunit is not an abscisic acid receptor[J]. Plant Physiol, 2009, 150：157-166.
[23] 张大鹏. 始于质体/叶绿体的ABA信号通路[J].植物学报, 2011, 46（4）：361-369.
[24] Tsuzuki T, Takahashi K, Inoue S. Mg-chelatase H subunit affects ABA signaling in stomatal guard cells, but is not an ABA receptor in Arabidopsis thaliana[J]. J Plant Res, 2011, 124：527-538.
[25] 贾海锋, 柴叶茂, 李春丽, 等. 草莓果实中脱落酸受体基因FaABAR/CHLH 表达变化及其影响因素分析[J]. 园艺学报, 2011, 38（9）：1650-1656.
[26] Ren J, Sun L, Wang CL, et al. Expression analysis of the cDNA for magnesium chelatase H subunit（CHLH）during sweet cherry fruit ripening and under stress conditions[J]. Plant Growth Regulation, 2011, 63：301-307.