Molecular characterization of the avrXa7 locus from Xanthomonas oryzae pv. oryzae field isolates

Ponciano, Grisel; Webb, Kimberly M.; Bai, Jianfa; Cruz, Casiana Vera; Leach, Jan E.

doi:10.1016/j.pmpp.2004.08.001

Cited by 11 publications

(18 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The race 9b strains caused a continuous range in AUDPC on both IR24 and IRBB7, between the two extremes, as predicted from our previous work (Fig. 5b) (Ponciano et al 2004). …”

Section: General Adult Plant Resistancesupporting

confidence: 87%

“…Influence of avrXa7 allele on interactions with rice with Xa7 at different developmental stages Ponciano et al (2004) demonstrated that Xa7-mediated resistance varied in interactions with different avrXa7 mutant alleles. In particular, strains classified as race 9b (avrXa7 -/+ ) contained altered avrXa7 alleles, and caused intermediate levels of disease on IR24 and low disease on IRBB7 relative to race 3 (avrXa7 + ) and 9a/c (avrXa7 -) strains.…”

Section: General Adult Plant Resistancementioning

confidence: 99%

“…In this study, due to cooler greenhouse temperatures, plants at 28 das were at the seedling stage (two fully expanded leaves) and plants at 51 das were at maximum tillering. We used Xoo strains for inoculation that exhibited a range of phenotypes on IRBB7 rice (Ponciano et al 2004). These strains range from avirulent (avrXa7 + , PXO1865, PXO368), to partially virulent (avrXa7 -/+ , PXO0314, PXO441, PXO357, PXO433, PXO356, PXO348, PXO448, PXO419), to virulent (avrXa7 -, PXO346, PXO2684).…”

Section: Growth Of Bacteria and Rice Cultivarsmentioning

confidence: 99%

“…Our work here suggests that Xa7 clearly functions after 21 das. Because of the variation in interactions with the race 9b strains observed in Ponciano et al (2004), we wanted to determine if interactions of Xa7 and different avrXa7 alleles are affected by developmental stage. For these experiments, we measured the area under the disease progress curve (AUDPC) (Campbell and Madden 1990) of IRBB7 and IR24 plants during interactions with race 3, 9b, and 9c strains.…”

Section: General Adult Plant Resistancementioning

confidence: 99%

See 3 more Smart Citations

Influence of rice development on the function of bacterial blight resistance genes

et al. 2010

Self Cite

View full text Add to dashboard Cite

show abstract

“…The race 9b strains caused a continuous range in AUDPC on both IR24 and IRBB7, between the two extremes, as predicted from our previous work (Fig. 5b) (Ponciano et al 2004). …”

Section: General Adult Plant Resistancesupporting

confidence: 87%

Section: General Adult Plant Resistancementioning

confidence: 99%

Section: Growth Of Bacteria and Rice Cultivarsmentioning

confidence: 99%

Section: General Adult Plant Resistancementioning

confidence: 99%

See 2 more Smart Citations

Influence of rice development on the function of bacterial blight resistance genes

et al. 2010

Self Cite

View full text Add to dashboard Cite

show abstract

“…Entire fungal or bacterial communities can be characterized taxonomically by incorporating new techniques such as ''shotgun sequencing'' of a community's collective genome and using genome database searches to identify species and predict gene function (Venter et al, 2004). At a finer scale, sequencing specific genes in pathogen mutants may give insight into cost of virulence (Vera Cruz et al, 2000;Ponciano et al, 2004). Sequencing can also be used to evaluate the potential repertoire of resistance genes available, to the extent that sequence similarity can predict functional similarity (Bai et al, 2002).…”

Section: How Population Genetics and Population Genomics Can Inform Ementioning

confidence: 99%

Ecological genomics and epidemiology

Garrett

Hulbert

Leach

et al.

Plant Disease Epidemiology: Facing Challenges of the 21st Century

View full text Add to dashboard Cite

The huge amount of genomic data now becoming available offers both opportunities and challenges for epidemiologists. In this ''preview'' of likely developments as the field of ecological genomics evolves and merges with epidemiology, we discuss how epidemiology can use new information about genetic sequences and gene expression to form predictions about epidemic features and outcomes and for understanding host resistance and pathogen evolution. DNA sequencing is now complete for some hosts and several pathogens. Microarrays make it possible to measure gene expression simultaneously for thousands of genes. These tools will contribute to plant disease epidemiology by providing information about which resistance or pathogenicity genes are present in individuals and populations, what genes other than those directly involved in resistance and virulence are important in epidemics, the role of the phenotypic status of hosts and pathogens, and the role of the status of the environmental metagenome. Conversely, models of group dynamics supplied by population biology and ecology may be used to interpret gene expression within individual organisms and in populations of organisms. Genomic tools have great potential for improving understanding of resistance gene evolution and the durability of resistance. For example, DNA sequence analysis can be used to evaluate whether an arms race model of co-evolution is supported. Finally, new genomic tools will make it possible to consider the landscape ecology of epidemics in terms of host resistance both as determined by genotype and as expressed in host phenotypes in response to the biotic and abiotic environment. Host phenotype mixtures can be modeled and evaluated, with epidemiological predictions based on phenotypic characteristics such as physiological age and status in terms of induced systemic resistance or systemic acquired resistance.

show abstract

The Roles of Transcription Activator–Like (TAL) Effectors in Virulence and Avirulence of Xanthomonas

Hummel

Bogdanove

2012

Molecular Plant Immunity

View full text Add to dashboard Cite

Molecular characterization of the avrXa7 locus from Xanthomonas oryzae pv. oryzae field isolates

Cited by 11 publications

References 28 publications

Influence of rice development on the function of bacterial blight resistance genes

Influence of rice development on the function of bacterial blight resistance genes

Ecological genomics and epidemiology

The Roles of Transcription Activator–Like (TAL) Effectors in Virulence and Avirulence of Xanthomonas

Contact Info

Product

Resources

About