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Reference Detail
| Reference | ||
|---|---|---|
| Author | Jadoon S., Qin Q., Shi W., Longfeng Y., Hou S. | |
| Title | Rice protein phosphatase 1 regulatory subunits OsINH2 and OsINH3 participate actively in growth and adaptive responses under abscisic acid. | |
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Abstract: Rice (<i>Oryza sativa</i> L.), a worldwide staple food crop, is affected by various environmental stressors that ultimately reduce yield. However, diversified physiological and molecular responses enable it to cope with adverse factors. It includes the integration of numerous signaling in which protein phosphatase 1 (PP1) plays a pivotal role. Research on PP1 has been mostly limited to the PP1 catalytic subunit in numerous cellular progressions. Therefore, we focused on the role of PP1 regulatory subunits (PP1r), <i>OsINH2</i> and <i>OsINH3</i>, homologs of <i>AtINH2</i> and <i>AtINH3</i> in Arabidopsis, in rice growth and stress adaptations. Our observations revealed that these are ubiquitously expressed regulatory subunits that interacted and colocalized with their counter partners, type 1 protein phosphatase (OsTOPPs) but could not change their subcellular localization. The mutation in <i>OsINH2</i> and <i>OsINH3</i> reduced pollen viability, thereby affected rice fertility. They were involved in abscisic acid (ABA)-mediated inhibition of seed germination, perhaps by interacting with osmotic stress/ABA-activated protein kinases (OsSAPKs). Meanwhile, they positively participated in osmotic adjustment by proline biosynthesis, detoxifying reactive oxygen species (ROS) through peroxidases (POD), reducing malondialdehyde formation (MDA), and regulating stress-responsive genes. Moreover, their co-interaction proposed they might mediate cellular processes together or by co-regulation; however, the special behavior of two different PP1r is needed to explore. In a nutshell, this research enlightened the involvement of <i>OsINH2</i> and <i>OsINH3</i> in the reproductive growth of rice and adaptive strategies under stress. Hence, their genetic interaction with ABA components and deep mechanisms underlying osmotic regulation and ROS adjustment would explain their role in complex signaling. This research offers the basis for introducing stress-resistant crops. |
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| Journal | Front Plant Sci | |
| Country | China | |
| Volume | 13 | |
| Pages | 990575 | |
| Year | 2022 | |
| PubMed ID | 36186070 | |
| PubMed Central ID | 9521630 | |
| DOI | 10.3389/fpls.2022.990575 | |
| URL | - | |
| Relation | ||
| Gene | INH2 INH3 LEA3-1 LIP19 ONAC2 P5CS PP101 PP41 PP47 PP5 PP83 SAPK1 SAPK2 SAPK3 SAPK8 SAPK9 | |
| INSD | - | |
| Strain | Wild Core Collection | - |
| Induced Mutation Lines(NIG Collection) | - | |
| Sterile Seed Strain | - | |
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Lethal Embryo Mutantion Strain |
- | |
|
Stages in Each Organ - Muant Lines (Gene) |
- | |
| Cultivated Varieties(NIG Collection) | - | |
| Stages in Each Organ | - | |
