Abstract:
:Phytopathogenic bacteria use the type-III secretion system (TTSS) to inject effector proteins into plant cells, presumably to colonize their hosts. The function of these proteins inside plant cells has remained a mystery for years. The recent discovery that the effectors XopD, AvrXv4, AvrPphB, and AvrRpt2 have cysteine protease functions reveals that the proteolysis of host substrates is an important strategy employed by pathogens to alter plant physiology. Moreover, the characterization of these proteases and their targets provides new insight to mechanisms of bacterial virulence and the activation of plant immunity.
journal_name
Curr Opin Plant Bioljournal_title
Current opinion in plant biologyauthors
Hotson A,Mudgett MBdoi
10.1016/j.pbi.2004.05.003subject
Has Abstractpub_date
2004-08-01 00:00:00pages
384-90issue
4eissn
1369-5266issn
1879-0356pii
S136952660400069Xjournal_volume
7pub_type
杂志文章,评审abstract::Thousands of sieve tube exudate proteins (STEP) have now been identified and predicted to fulfill a diversity of functions. However, most STEPs should be considered putative, since methods to collect sieve tube exudates have many technical drawbacks, and advanced functional characterization will be required to disting...
journal_title:Current opinion in plant biology
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abstract::Plant-infecting viruses cause significant crop losses around the world and the majority of emerging threats to crop production have a viral etiology. Significant progress has been made and continues to be made in understanding how viruses induce disease and overcome some forms of resistance-particularly resistance bas...
journal_title:Current opinion in plant biology
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abstract::The accumulation of a given element is a complex process controlled by a network of gene products critical for uptake, binding, transportation, and sequestration. Many of these genes and physiological processes affect more than one element. Therefore, to understand how elements are regulated, it is necessary to measur...
journal_title:Current opinion in plant biology
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abstract::Plants must adapt to drought stress to survive. The phytohormone abscisic acid (ABA) is produced under drought stress conditions and is essential for the response to drought stress. The ABA level plays an important role in the response, and several enzymes for ABA biosynthesis and catabolism have been identified. Phys...
journal_title:Current opinion in plant biology
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doi:10.1016/j.pbi.2007.04.014
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abstract::Developing new genotypes of plants is one of the key options for adaptation of agriculture to climate change. Plants may be required to provide resilience in changed climates or support the migration of agriculture to new regions. Very different genotypes may be required to perform in the modified environments of prot...
journal_title:Current opinion in plant biology
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abstract::Since plants are sessile they must be able to sense and rapidly respond to changes in ambient temperature. Key aspects of plant development, including the transition to flowering and the circadian clock, have important inputs from ambient temperature. In the model system Arabidopsis thaliana, molecular candidates for ...
journal_title:Current opinion in plant biology
pub_type: 杂志文章,评审
doi:10.1016/j.pbi.2005.07.011
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abstract::Methylation of histones on different lysine residues is dynamically added by distinct writer enzymes, interpreted by reader proteins, and removed by eraser enzymes. This epigenetic mark has widespread, dynamic roles in plant development and environmental responses. For example, histone methylation plays a key role in ...
journal_title:Current opinion in plant biology
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abstract::Transcriptional regulation plays a major role in defining cell identity. Analysis of cell type-resolution expression profiling datasets is moving beyond cataloging gene expression patterns to reveal novel biological insights. Recently developed expression maps of the shoot apical meristem and gametophytes can be used ...
journal_title:Current opinion in plant biology
pub_type: 杂志文章,评审
doi:10.1016/j.pbi.2011.05.007
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abstract::Successful penetration of living plant tissue by fungal pathogens is preceded by an exchange of signals between both organisms. Recent mutational approaches revealed the importance of cAMP-dependent signalling pathways for fungal development and virulence on their hosts. ...
journal_title:Current opinion in plant biology
pub_type: 杂志文章,评审
doi:10.1016/1369-5266(88)80054-2
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abstract::Mitogen-activated protein kinases (MAPKs) link information transfer from external stimuli-activated sensors to cellular responses. The completed Arabidopsis genome sequence revealed an extraordinary complexity in MAPK-signalling components in plants. Information obtained from Arabidopsis provides a framework for a uni...
journal_title:Current opinion in plant biology
pub_type: 杂志文章,评审
doi:10.1016/s1369-5266(02)00285-6
更新日期:2002-10-01 00:00:00
abstract::Active research in rice genetics aided by full-genome sequence has generated results to address multiple problems caused by biotic and abiotic stresses. The main challenges are achieving stability of resistance against variable biological agents and defining the genetic basis of traits influenced strongly by genotypex...
journal_title:Current opinion in plant biology
pub_type: 杂志文章,评审
doi:10.1016/j.pbi.2007.12.005
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abstract::Plants have acquired the ability for organized multicellular development independent from animals. Because of this, they represent an independent example in nature for the development of coordinated, complex cell polarity from the simple polarity found in unicellular eukaryotes. Plants display a striking array of pola...
journal_title:Current opinion in plant biology
pub_type: 杂志文章,评审
doi:10.1016/j.pbi.2008.09.009
更新日期:2009-02-01 00:00:00
abstract::The phytohormones gibberellin (GA) and abscisic acid (ABA) play essential and often antagonistic roles in regulating plant growth, development and stress responses. The long-awaited identification of receptors for both GA and ABA has shed light upon the initial events that surround the perception of these two phytohor...
journal_title:Current opinion in plant biology
pub_type: 杂志文章,评审
doi:10.1016/j.pbi.2006.07.007
更新日期:2006-10-01 00:00:00
abstract::Flooding is one of the most hazardous natural disasters, and there are several levels of flooding. Recently, research on flood-tolerant rice plants revealed that some rice varieties have evolved to overcome two different flood types, 'flash flood' and 'deepwater flood', using two different mechanisms, and their molecu...
journal_title:Current opinion in plant biology
pub_type: 杂志文章
doi:10.1016/j.pbi.2010.09.008
更新日期:2011-02-01 00:00:00
abstract::Nitrogen (N) is an essential element for plants that is available in agricultural soils mainly as macronutrients in the form of nitrate and ammonium. Interplay between high-affinity and low-affinity transporters ensures efficient uptake from the soil even under highly fluctuating N availability. After uptake, N assimi...
journal_title:Current opinion in plant biology
pub_type: 杂志文章,评审
doi:10.1016/j.pbi.2015.05.010
更新日期:2015-06-01 00:00:00
abstract::The cytoplasmic Ca(2+) signals that participate in nearly all aspects of plant growth and development encode information as binary switches or information-rich signatures. They are the result of influx (thermodynamically passive) and efflux (thermodynamically active) activities mediated by membrane transport proteins....
journal_title:Current opinion in plant biology
pub_type: 杂志文章,评审
doi:10.1016/j.pbi.2011.08.001
更新日期:2011-12-01 00:00:00
abstract::Starch is one of the major sinks of fixed carbon in photosynthetic tissues of higher plants. Carbon fixation and the synthesis of primary starch occur during the day in the chloroplast stroma, whereas starch degradation typically occurs during the following night to fuel the whole plant with energy and carbon in the a...
journal_title:Current opinion in plant biology
pub_type: 杂志文章,评审
doi:10.1016/j.pbi.2015.04.003
更新日期:2015-06-01 00:00:00
abstract::The combination of mutational and molecular studies has shed light on the role of reactive oxygen intermediates and programmed cell death in cereal disease resistance mechanisms. Rice Rac1 and barley Rar1 represent conserved disease resistance signalling genes, which may have related functions in animals. The analysis...
journal_title:Current opinion in plant biology
pub_type: 杂志文章,评审
doi:10.1016/S1369-5266(99)80052-1
更新日期:1999-08-01 00:00:00
abstract::Molecular cloning of mutations affecting the morphology of plant leaves has proven to be useful for the causal analysis of leaf development. Studies of leaf mutants have produced a wealth of biologically meaningful information on the genes that participate in leaf initiation, leaf polarity specification and maintenanc...
journal_title:Current opinion in plant biology
pub_type: 杂志文章,评审
doi:10.1016/j.pbi.2008.11.001
更新日期:2009-02-01 00:00:00
abstract::The plant cell wall provides form and integrity to the cell as well as a dynamic interface between a cell and its environment. Therefore mechanisms capable of policing changes in the cell wall, signaling cellular responses including those that would feedback regulate cell wall properties are expected to play important...
journal_title:Current opinion in plant biology
pub_type: 杂志文章,评审
doi:10.1016/j.pbi.2011.09.001
更新日期:2011-12-01 00:00:00
abstract::Border cells and border-like cells are released from the root tip as individual cells and small aggregates, or as a group of attached cells. These are viable components of the root system that play a key role in controlling root interaction with living microbes of the rhizosphere. As their separation from root tip pro...
journal_title:Current opinion in plant biology
pub_type: 杂志文章,评审
doi:10.1016/j.pbi.2013.06.010
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abstract::The deployment of genetically engineered (GE) crops in developing countries is regarded by some as a sinister manifestation of 'big business' in science. What is often overlooked, and sometimes even deliberately ignored by opponents of the technology, is that many researchers working in the field are not motivated by ...
journal_title:Current opinion in plant biology
pub_type: 杂志文章
doi:10.1016/j.pbi.2009.11.002
更新日期:2010-04-01 00:00:00
abstract::Developmental plasticity is a defining feature of plants allowing them to colonize a wide range of different ecosystems by promoting environmental adaptation. Their postembryonic development requires life-long maintenance of stem cells, which are embedded into specialized tissues, called meristems. The shoot apical me...
journal_title:Current opinion in plant biology
pub_type: 杂志文章,评审
doi:10.1016/j.pbi.2016.11.014
更新日期:2017-02-01 00:00:00
abstract::Plants require calcium, magnesium, nitrogen, phosphorous, potassium and sulfur in relatively large amounts (>0.1% of dry mass) and each of these so-called macronutrients is essential for a plant to complete its life cycle. Normally, these minerals are taken up by plant roots from the soil solution in ionic form with t...
journal_title:Current opinion in plant biology
pub_type: 杂志文章,评审
doi:10.1016/j.pbi.2009.04.003
更新日期:2009-06-01 00:00:00
abstract::The activity of cyclin-dependent kinases (CDKs) on specific targets mediates the temporal regulation of plant cell cycle transitions. The sequential activity of CDKs and the spatial regulation of cell proliferation during plant development, however, are still poorly understood. Understanding these aspects depends on t...
journal_title:Current opinion in plant biology
pub_type: 杂志文章,评审
doi:10.1016/s1369-5266(98)80041-1
更新日期:1998-12-01 00:00:00
abstract::In contrast to animals, gametes in plants form a separate haploid generation, the gametophyte. The female gametophyte of flowering plants consists of just four different cell types that play distinct roles in the reproductive process. Differentiation of the distinct cell fates is tightly controlled and appears to foll...
journal_title:Current opinion in plant biology
pub_type: 杂志文章,评审
doi:10.1016/j.pbi.2007.07.011
更新日期:2007-12-01 00:00:00
abstract::Recent molecular biological and genetical studies have identified several positive and negative regulators of gibberellin (GA) signalling pathways in higher plants. The DELLA protein functions as a negative regulator of GA signalling; its degradation through the ubiquitin/proteasome pathway is a key event in the regul...
journal_title:Current opinion in plant biology
pub_type: 杂志文章,评审
doi:10.1016/s1369-5266(03)00079-7
更新日期:2003-10-01 00:00:00
abstract::Recent studies have further confirmed the ubiquity of cell wall restructuring during plant growth and development, and have emphasized the fact that our understanding of the breadth of molecular processes that mediate wall modification is still rudimentary. In the past few years, both enzymatic and non-enzymatic agent...
journal_title:Current opinion in plant biology
pub_type: 杂志文章,评审
doi:10.1016/j.pbi.2004.03.013
更新日期:2004-06-01 00:00:00
abstract::Growth and development of plants are driven by the continuous production of new cells at the meristems; hence, it is of pivotal importance for plants to precisely regulate the timing and extent of cell proliferation. Although over the past decades the molecular components underlying cell cycle progression have been th...
journal_title:Current opinion in plant biology
pub_type: 杂志文章,评审
doi:10.1016/j.pbi.2014.09.012
更新日期:2015-02-01 00:00:00
abstract::Asymmetric cell divisions (ACDs) are used to create organismal form and cellular diversity during plant development. In several embryonic and postembryonic contexts, genes that specify cell fates and networks that provide positional information have been identified. The cellular mechanisms that translate this informat...
journal_title:Current opinion in plant biology
pub_type: 杂志文章,评审
doi:10.1016/j.pbi.2010.09.016
更新日期:2010-12-01 00:00:00