Journal ArticleDOI
The role and regulation of programmed cell death in plant–pathogen interactions
Jean T. Greenberg,Nan Yao +1 more
TLDR
Recent progress is reviewed in determining the role and regulation of plant pcd responses that accompany both resistance and susceptible interactions and the mechanisms by which plant pCD occurs during these different interactions.Abstract:
It is commonly known that animal pathogens often target and suppress programmed cell death (pcd) pathway components to manipulate their hosts. In contrast, plant pathogens often trigger pcd. In cases in which plant pcd accompanies disease resistance, an event called the hypersensitive response, the plant surveillance system has learned to detect pathogen-secreted molecules in order to mount a defence response. In plants without genetic disease resistance, these secreted molecules serve as virulence factors that act through largely unknown mechanisms. Recent studies suggest that plant bacterial pathogens also secrete antiapoptotic proteins to promote their virulence. In contrast, a number of fungal pathogens secrete pcd-promoting molecules that are critical virulence factors. Here, we review recent progress in determining the role and regulation of plant pcd responses that accompany both resistance and susceptible interactions. We also review progress in discerning the mechanisms by which plant pcd occurs during these different interactions.read more
Citations
More filters
Journal ArticleDOI
Comparative transcriptome analysis reveals defense responses against soft rot in Chinese cabbage.
Mengyang Liu,Fang Wu,Shan Wang,Yin Lu,Xueping Chen,Yanhua Wang,Aixia Gu,Jianjun Zhao,Shuxing Shen +8 more
TL;DR: Plants harboring the resistant mutant sr gene, which confers resistance against Pcc, were screened from an 800 M2 population mutated by ethyl methane sulfonate and scored in vitro and in vivo for lesion size and transcript profiles showed differentially expressed genes between sr and WT plants corresponded to the important defense regulation period (resistance) to Pcc.
Book ChapterDOI
Methods to Quantify Biotic-Induced Stress in Plants
TL;DR: This chapter describes the quantification of hydrogen peroxide by 3,3'-diaminobenzidine staining and luminol-based assays, and of superoxide by nitroblue tetrazolium (NBT) staining.
Journal ArticleDOI
Arabidopsis DAL1 and DAL2, two RING finger proteins homologous to Drosophila DIAP1, are involved in regulation of programmed cell death
TL;DR: Data suggest that DAL1 and DAL2 may act as negative regulators of PCD in Arabidopsis and undergo extensive PCD upon infiltration of FB1 and displayed higher levels of ROS accumulation, callose deposition, and autofluorescence than the wild-type plants.
Journal ArticleDOI
Comparative proteomic analysis of melon phloem exudates in response to viral infection.
TL;DR: Two-dimensional difference in-gel electrophoresis (2D DIGE) technique, which combined with DeCyder Differential Analysis Software allows a more accurate and sensitive quantitative analysis than with conventional 2D PAGE.
Journal ArticleDOI
Lazarus1, a DUF300 Protein, Contributes to Programmed Cell Death Associated with Arabidopsis acd11 and the Hypersensitive Response
Frederikke Gro Malinovsky,Peter Brodersen,Berthe Katrine Fiil,Lea Vig McKinney,Stephan Thorgrimsen,Martina Beck,H. Bjørn Nielsen,Stefano Pietra,Cyril Zipfel,Silke Robatzek,Morten Petersen,Daniel Hofius,John Mundy +12 more
TL;DR: The findings indicate that LAZ1 functions as a regulator or effector of plant PCD associated with the HR, in addition to its role in acd11-related death, and the similar topology of a plant and human DUF300 proteins suggests similar functions in PCD across the eukaryotic kingdoms, although a direct role for TMEM34 in cell death control remains to be established.
References
More filters
Journal ArticleDOI
Mitochondria and apoptosis
Douglas R. Green,John C. Reed +1 more
TL;DR: A variety of key events in apoptosis focus on mitochondria, including the release of caspase activators (such as cytochrome c), changes in electron transport, loss of mitochondrial transmembrane potential, altered cellular oxidation-reduction, and participation of pro- and antiapoptotic Bcl-2 family proteins.
Journal ArticleDOI
COI1: An Arabidopsis Gene Required for Jasmonate-Regulated Defense and Fertility
TL;DR: The coi1 mutation defines an Arabidopsis gene required for response to jasmonates, which regulate defense against insects and pathogens, wound healing, and pollen fertility as mentioned in this paper.
Journal ArticleDOI
Arabidopsis gp91phox homologues AtrbohD and AtrbohF are required for accumulation of reactive oxygen intermediates in the plant defense response
TL;DR: In this paper, the authors analyzed lines carrying dSpm insertions in the highly expressed AtrbohD and AtrabohF genes, which are required for full ROI production observed during incompatible interactions with the bacterial pathogen Pseudomonas syringae pv.
Journal ArticleDOI
Direct interaction of resistance gene and avirulence gene products confers rice blast resistance
TL;DR: It is reported here that transient expression of AVR‐Pita176 inside plant cells results in a Pi‐ta‐dependent resistance response, and data suggest that the AVR-Pita 176 protein binds directly to the Pi‐TA LRD region inside the plant cell to initiate a Pi-ta‐mediated defense response.