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1.
Triple Loss of Function of Protein Phosphatases Type 2C Leads to Partial Constitutive Response to Endogenous Abscisic Acid 总被引:2,自引:0,他引:2
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2.
Kim TH 《Molecules and cells》2012,33(1):1-7
Abiotic and biotic stresses are the major factors that negatively impact plant growth. In response to abiotic environmental
stresses such as drought, plants generate resistance responses through abscisic acid (ABA) signal transduction. In addition
to the major role of ABA in abiotic stress signaling, ABA signaling was reported to downregulate biotic stress signaling.
Conversely recent findings provide evidence that initial activation of plant immune signaling inhibits subsequent ABA signal
transduction. Stimulation of effector-triggered disease response can interfere with ABA signal transduction via modulation of internal calcium-dependent signaling pathways. This review overviews the interactions of abiotic and biotic
stress signal transduction and the mechanism through which stress surveillance system operates to generate the most efficient
resistant traits against various stress condition. 相似文献
3.
Han Seungsu Lee Yeongmok Park Eun Joo Min Myung Ki Lee Yongsang Kim Tae-Houn Kim Beom-Gi Lee Sangho 《Plant molecular biology》2019,100(3):319-333
Plant Molecular Biology - We determined the structure of OsPYL/RCAR3:OsPP2C50 complex with pyrabactin. Our results suggest that a less-conserved phenylalanine of OsPYL/RCAR subfamily I is... 相似文献
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Yung Chul Park Jung-Sun Yoo Sung-Soo Jun Tae-Houn Kim Jong Kuk Kim Jae Chun Choe Ho Bang Kim 《Journal of Asia》2012,15(3):343-348
Recent challenges in the study of animal behavior are to detect genes related to behavior and how the genes exert their influence on morphological and behavioral plasticity, particularly as related to the mechanism of insect sociability. In this study, we discovered genes related to parental care behavior in social insects. Woodroaches of the genus Cryptocercus provide nutritious materials and symbiotic protists via proctodeal feeding to their young during early developmental stages. Thus, they are a good model species for discovering genes related to parental care behavior. We screened eight differentially expressed genes (DEG1–DEG8) from adult Cryptocercus females exhibiting maternal care behavior. Of the proteins translated from the screened genes, DEG7 showed high homology to apolipophorin-III-like proteins. Analysis of diverse molecular features revealed that DEG7 was a partial clone encoding apoLp-III, which plays essential roles in hemolymph-lipid transport processes in insects. Isolation of full-length cDNAs for the DEGs identified in this study would be very helpful for a functional annotation of the individual genes and further understanding of maternal care behavior at the molecular level in the future. 相似文献
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Han Seungsu Lee Ji-young Lee Yeongmok Kim Tae-Houn Lee Sangho 《Plant molecular biology》2019,101(4-5):455-469
Plant Molecular Biology - Regulation of abscisic acid (ABA) signaling is crucial in balancing responses to abiotic stresses and retaining growth in planta. An ABA receptor (PYL/RCAR) and a protein... 相似文献
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Yerim Kwon Si-in Yu Joo-hyuk Park Ying Li Jin-Hee Han Hemasundar Alavilli Jung-Il Cho Tae-Houn Kim Jong-Seong Jeon Byeong-ha Lee 《Plant biotechnology reports》2012,6(3):213-224
The morphology of the rice inflorescence, called the panicle, is determined mainly by the activities of axillary meristems
including primary, secondary, and spikelet meristems. Recently, in maize, the RAMOSA1 ENHANCER LOCUS2 (REL2) gene, orthologous to the Arabidopsis shoot apical meristem fate-determining TOPLESS, was shown to be involved in the regulation of axillary meristem determinacy. In order to investigate the function of the
rice REL2 homolog, we identified and characterized the rice REL2 gene (OsREL2). Compared to other rice TPL homologs, OsREL2 gene expression stayed relatively low throughout panicle development. We characterized a T-DNA insertion osrel2 mutant that showed pleiotropic phenotypic defects, such as defects in panicle heading, sterile lemma elongation, and panicle
development, suggesting the OsREL2 functions in multiple developmental processes. In particular, osrel2 developed shorter axillary branches and reduced numbers of lateral organs on axillary branches in comparison to the wild-type,
indicating that OsREL2 is important in axillary meristem maintenance. Interestingly, osrel2 produced more primary branches and fewer secondary branches than the wild-type. These results suggest that OsREL2 is involved in branch formation regulation, presumably by suppressing primary branch formation and promoting secondary branch
formation. 相似文献
10.
In eukaryotes, fertilization relies on complex and specialized mechanisms that achieve the precise delivery of the male gamete to the female gamete and their subsequent union [1-4]. In flowering plants, the haploid male gametophyte or pollen tube (PT) [5] carries two nonmotile sperm cells to the female gametophyte (FG) or embryo sac [6] during a long assisted journey through the maternal tissues [7-10]. In Arabidopsis, typically one PT reaches one of the two synergids of the FG (Figure 1A), where it terminates its growth and delivers the sperm cells, a poorly understood process called pollen-tube reception. Here, we report the isolation and characterization of the Arabidopsis mutant abstinence by mutual consent (amc). Interestingly, pollen-tube reception is impaired only when an amc pollen tube reaches an amc female gametophyte, resulting in pollen-tube overgrowth and completely preventing sperm discharge and the development of homozygous mutants. Moreover, we show that AMC is strongly and transiently expressed in both male and female gametophytes during fertilization and that AMC functions in gametophytes as a peroxin essential for protein import into peroxisomes. These findings show that peroxisomes play an unexpected key role in gametophyte recognition and implicate a diffusible signal emanating from either gametophyte that is required for pollen-tube discharge. 相似文献