Showing papers in "Molecular Plant in 2008"

TL;DR: Undoubtedly, the most astonishing revelation is that ABA is not restricted to plants and mosses, but overwhelming evidence now indicates that it also exists in metazoans ranging from the most primitive to the most advance on the evolution scale (sponges to humans).

TL;DR: Results suggest a lower threshold for activation of early responses than for sustained or SA-mediated late defenses, and expression patterns of amino-cyclopropane-carboxylate synthase genes also implicate ethylene biosynthesis in regulation of the late innate immune response.

TL;DR: Analysis of transcriptome data from many publicly available Arabidopsis profiling experiments provides a roadmap for auxin-dependent processes that underpins the concept of an 'auxin code'--a tissue-specific fingerprint of gene expression that initiates specific developmental processes.

TL;DR: It is reported that XA21 binds to a WRKY transcription factor, called OsWRKY62, which functions as a negative regulator of innate immunity in rice, and serves as a critical mediator of both basal and race-specific defense responses.

TL;DR: The transient expression of fluorescence-tagged receptors in tobacco (Nicotiana benthamiana) epidermal leaf cells demonstrated that all ethylene receptors are targeted to the ER endomembrane network and do not localize to the plasmalemma.

TL;DR: It is demonstrated that Arabidopsis auxin signaling mutants axr1, axr2, and axr6 that have defects in the auxin-stimulated SCF (Skp1-Cullin-F-box) ubiquitination pathway exhibit increased susceptibility to the necrotrophic fungi Plectosphaerella cucumerina and Botrytis cinerea.

TL;DR: The results strongly suggest that proteasome-mediated protein degradation constitutes an important regulatory mechanism for restricting the BIN2 activity.

TL;DR: Microarray data revealed that a group of genes putatively involved in lipid transport and metabolism were significantly altered in the tdr mutant, indicating the critical role of TDR in the formation of the pollen wall.

TL;DR: In this paper, the authors used HMM-based domain structure and phylogenetic relationships to identify OsRLCKs from rice and found that most of the stress-responsive OsRCLKs were localized within mapped regions of abiotic stress QTLs.

TL;DR: In this paper, the authors reported functional characterization of an AP2/DREB-type transcription factor, Arabidopsis RAP2.4, in mediating light and ethylene signaling.

TL;DR: WRKY48 is a negative regulator of PR gene expression and basal resistance to the bacterial pathogen P. syringae, suggesting a role in plant defense responses to infiltration and pathogen infection.

TL;DR: It is concluded that NPH3-mediated phototropin signaling optimizes the efficiency of light perception by inducing both optimal leaf positioning and leaf flattening, and enhances plant growth.

TL;DR: OsWRKY13, an activator of rice resistance to both bacterial and fungal pathogens, appears to function as a convergent point for crosstalk among the pathogen-induced salicylate-dependent defense pathway and five other physiologic pathways.

TL;DR: Both ER/ ERL1/ERL2 and MPK3/MPK6 play important roles in normal anther lobe formation and anther cell differentiation, and the close functional relationship between these genes in other developmental processes and the similarities in anther developmental phenotypes of the two types of mutants reported here further suggest the possibility that these genes might also function in the same pathway to regulate anthercell division and differentiation.

TL;DR: It is concluded that CBL9 and CIPK3 act together in the same pathway for regulating ABA responses.

TL;DR: The identification and analysis of rice U-box proteins at the genomic level will help functionally characterize this class of E3 ubiquitin ligase in the future.

TL;DR: The data suggest that alternative recruitment of PIN proteins by these distinct pathways can account for cell type- and cargo-specific aspects of polar targeting, as well as for polarity changes in response to different signals.

TL;DR: It is shown that native UVR8 binds to chromatin in vivo, and ChIP experiments using antibodies that recognize specific histone modifications indicate that the UV-B-stimulated transcription of some genes may be correlated with histone modification.

TL;DR: Evidence is provided that the second messenger Ca2+, as well as protein kinases including MAPK and SnRK2, are very plausible mediators of the NO signals, which open new perspectives about NO-based signaling in plants.

TL;DR: Using RNAi, the seed oil body protein 24-kDa oleosin has been suppressed in transgenic soybeans and the formation of the micro-oil bodies in the oleOSin knockdown is interpreted to indicate a function of the oelosin as a surfactant.

TL;DR: The mission of the project will be to determine the function of every gene in the rice genome by the year 2020, to identify functional diversity of alleles for agriculturally useful genes from the primary gene pool of rice, and to apply the findings of functional genomics research to rice genetic improvement.

TL;DR: A new model for the biochemical mechanism of SI in the Solanaceae is presented, which can explain all SI phenomena and, at the same time, has raised new questions for further study.

TL;DR: In this article, a serine protease (Kunitz trypsin) inhibitor (KTI1) of Arabidopsis acts as a functional KTI when produced in bacteria and in planta.

TL;DR: The pollen-pistil interaction transcriptome indicates a time-course-specific modulation of transcripts of AtNOS1 and two Nitrate Reductases (nr1 and nr2), which collectively are thought to trigger a putative NO signaling pathway.

TL;DR: In this paper, a genome-wide gene expression analysis of two heterotic crosses in rice was performed, showing that approximately 7-9% of the genes were differentially expressed in the seedling shoots from two sets of heterotic cross, including many transcription factor genes.

TL;DR: The Genevestigator transcriptome meta-analysis of the model species rice and barley is expected to deliver results that can be used for functional genomics and biotechnological applications in cereals.

TL;DR: It is shown that the extensive microtubule network in elongating pollen tubes displays varying degrees of dynamics, and these reporter proteins provide versatile tools to explore the functional connection between major structural and signaling components of the polar pollen tube growth process.

TL;DR: It is indicated that GAs play a negative role in rice basal disease resistance, with EUI as a positive modulator through regulating the level of bioactive GAs.

TL;DR: Examination of the interaction of transcription factors binding the CBS and the G-box core element in the control of normal circadian rhythmic expression of Lhcb genes suggests that interaction of the HY5 and CCA1 proteins on LhCB promoters is necessary for normal circadian expression of the Lhcrim genes.

TL;DR: This work investigates the pattern of cellular and subcellular localization of phot1 in 3- 4-d-old etiolated seedlings of Arabidopsis thalinana and hypothesizes that blue-light-induced phot1 re-localization modulates blue- light-activated signal transduction.