FERONIA interacts with ABI2-type phosphatases to facilitate signaling cross-talk between abscisic acid and RALF peptide in Arabidopsis.
Jia Chen,Jia Chen,Feng Yu,Feng Yu,Ying Liu,Changqing Du,Xiushan Li,Sirui Zhu,Xianchun Wang,Wenzhi Lan,Pedro L. Rodriguez,Xuanming Liu,Dongping Li,Liangbi Chen,Sheng Luan +14 more
TLDR
ABI2 can directly interact and dephosphorylate FER, providing a feedback mechanism for ABA activation of FER and for cross-talk between ABA and peptide hormone RALF in the control of plant growth and responses to stress signals.Abstract:
Receptor-like kinase FERONIA (FER) plays a crucial role in plant response to small molecule hormones [e.g., auxin and abscisic acid (ABA)] and peptide signals [e.g., rapid alkalinization factor (RALF)]. It remains unknown how FER integrates these different signaling events in the control of cell growth and stress responses. Under stress conditions, increased levels of ABA will inhibit cell elongation in the roots. In our previous work, we have shown that FER, through activation of the guanine nucleotide exchange factor 1 (GEF1)/4/10-Rho of Plant 11 (ROP11) pathway, enhances the activity of the phosphatase ABA Insensitive 2 (ABI2), a negative regulator of ABA signaling, thereby inhibiting ABA response. In this study, we found that both RALF and ABA activated FER by increasing the phosphorylation level of FER. The FER loss-of-function mutant displayed strong hypersensitivity to both ABA and abiotic stresses such as salt and cold conditions, indicating that FER plays a key role in ABA and stress responses. We further showed that ABI2 directly interacted with and dephosphorylated FER, leading to inhibition of FER activity. Several other ABI2-like phosphatases also function in this pathway, and ABA-dependent FER activation required PYRABACTIN RESISTANCE (PYR)/PYR1-LIKE (PYL)/REGULATORY COMPONENTS OF ABA RECEPTORS (RCAR)-A-type protein phosphatase type 2C (PP2CA) modules. Furthermore, suppression of RALF1 gene expression, similar to disruption of the FER gene, rendered plants hypersensitive to ABA. These results formulated a mechanism for ABA activation of FER and for cross-talk between ABA and peptide hormone RALF in the control of plant growth and responses to stress signals.read more
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Plant abiotic stress response and nutrient use efficiency.
Zhizhong Gong,Liming Xiong,Huazhong Shi,Shuhua Yang,Luis Herrera-Estrella,Luis Herrera-Estrella,Guohua Xu,Dai-Yin Chao,Jingrui Li,Peng Yun Wang,Feng Qin,Jijang Li,Yanglin Ding,Yiting Shi,Yu Wang,Yongqing Yang,Yan Guo,Jian-Kang Zhu +17 more
TL;DR: Recent work on the genetic and molecular mechanisms of plant abiotic stress and nutrient limitation sensing and signaling is summarized and new directions for future studies are discussed.
Journal ArticleDOI
The FERONIA Receptor Kinase Maintains Cell-Wall Integrity during Salt Stress through Ca2+ Signaling
Wei Feng,Daniel Kita,Alexis Peaucelle,Alexis Peaucelle,Heather N. Cartwright,Vinh Doan,Qiaohong Duan,Ming-Che Liu,Jacob Maman,Leonie Steinhorst,Ina Schmitz-Thom,Robert Yvon,Jörg Kudla,Hen-Ming Wu,Alice Y. Cheung,José R. Dinneny,José R. Dinneny +16 more
TL;DR: Results reported here show that salinity causes softening of the cell wall and that FER is necessary to sense these defects, and identify FER as a sensor of damage to the pectin-associated wall.
Journal ArticleDOI
How Plant Hormones Mediate Salt Stress Responses.
TL;DR: This review discusses and summarize how plant hormones mediate salinity signals to regulate plant growth adaptation and highlights how, in response to salt stress, plants build a defense system by orchestrating the synthesis, signaling, and metabolism of various hormones via multiple crosstalks.
Journal ArticleDOI
Plant immunity in signal integration between biotic and abiotic stress responses
Yusuke Saijo,Eliza Po-iian Loo +1 more
TL;DR: In this article, the authors discuss how plants coordinate conflicting demands when exposed to combinations of different stresses, with attention to a possible determinant that links initial stress response to broad-spectrum stress tolerance or prioritization of specific stress tolerance.
Journal ArticleDOI
RALF4/19 peptides interact with LRX proteins to control pollen tube growth in Arabidopsis
Martin A. Mecchia,Martin A. Mecchia,Martin A. Mecchia,Gorka Santos-Fernandez,Nadine N. Duss,Sofía C. Somoza,Aurélien Boisson-Dernier,Valeria Gagliardini,Andrea Martinez-Bernardini,Tohnyui Ndinyanka Fabrice,Christoph Ringli,Jorge P Muschietti,Jorge P Muschietti,Ueli Grossniklaus +13 more
TL;DR: It is found that Arabidopsis RalF4 and RALF19 redundantly regulate pollen tube integrity and growth, and that their function depends on pollen-expressed proteins of the LEUCINE-RICH REPEAT EXTENSIN (LRX) family, which play a role in cell wall development but whose mode of action is not understood.
References
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Journal ArticleDOI
Abscisic Acid: Emergence of a Core Signaling Network
TL;DR: A new model for ABA action has been proposed and validated, in which the soluble PYR/PYL/RCAR receptors function at the apex of a negative regulatory pathway to directly regulate PP2C phosphatases, which in turn directly regulate SnRK2 kinases.
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Receptor-like kinases from Arabidopsis form a monophyletic gene family related to animal receptor kinases.
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Journal ArticleDOI
Early abscisic acid signal transduction mechanisms: newly discovered components and newly emerging questions
Katharine E. Hubbard,Noriyuki Nishimura,Kenichi Hitomi,Elizabeth D. Getzoff,Julian I. Schroeder +4 more
TL;DR: An emerging PYR/RCAR-PP2C-SnRK2 model of ABA signal transduction provides researchers with a framework through which early ABA signaling can be understood, and allow novel questions about the hormone response pathway and possible applications in stress resistance engineering of plants to be addressed.
Journal ArticleDOI
The FERONIA Receptor-like Kinase Mediates Male-Female Interactions During Pollen Tube Reception
Juan M. Escobar-Restrepo,Norbert Huck,Sharon A Kessler,Valeria Gagliardini,Jacqueline Gheyselinck,Wei-Cai Yang,Ueli Grossniklaus +6 more
TL;DR: The findings show that the female control of pollen tube reception is based on a FER-dependent signaling pathway, which may play a role in reproductive isolation barriers, and the FER protein accumulates asymmetrically in the synergid membrane at the filiform apparatus.