Identification of a locus controlling <i>Verticillium</i> disease symptom response in <i>Arabidopsis thaliana</i>

Veronese, Paola; Narasimhan, Meena L.; Stevenson, Rebecca A.; Zhu, Jian-K.; Weller, Stephen C.; Subbarao, Krishna V.; Bressan, Ray A.

doi:10.1046/j.1365-313x.2003.01830.x

Cited by 166 publications

(208 citation statements)

References 85 publications

Supporting

Mentioning

175

Contrasting

Unclassified

Order By: Relevance

“…[See online article for color version of this figure. ] potato (Solanum tuberosum; Zhou et al, 2006;Klosterman et al, 2009). Typical symptoms caused by V. dahliae include leaf necrosis, premature defoliation, altered flowering time, and severe growth stunting (Veronese et al, 2003;Fradin et al, 2009;Xu et al, 2011b). Recent studies have identified signaling pathways that play essential roles in cotton resistance to V. dahliae (Xu et al, 2011b;Gao et al, 2013;Zhang et al, 2013), but how plants orchestrate development under V. dahliae infection remains elusive.…”

Section: Discussionmentioning

confidence: 99%

“…Susceptible ecotypes exhibit a pathogen-induced early-flowering phenotype, whereas more tolerant ecotypes exhibit delayed flowering after Verticillium spp. inoculation (Veronese et al, 2003;Häffner et al, 2010). It is reported that VET1 (for V. dahliae tolerance) plays a negative role in flowering time and a positive role in pathogen resistance (Veronese et al, 2003).…”

Section: Discussionmentioning

confidence: 99%

“…inoculation (Veronese et al, 2003;Häffner et al, 2010). It is reported that VET1 (for V. dahliae tolerance) plays a negative role in flowering time and a positive role in pathogen resistance (Veronese et al, 2003). By contrast, GbWRKY1 appears to possess functions antagonistic to VET1, as its overexpression in Arabidopsis resulted in early flowering and the attenuation of resistance to V. dahliae.…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Cotton WRKY1 Mediates the Plant Defense-to-Development Transition during Infection of Cotton byVerticillium dahliaeby ActivatingJASMONATE ZIM-DOMAIN1Expression

Luo

et al. 2014

Plant Physiology

133

View full text Add to dashboard Cite

Plants have evolved an elaborate signaling network to ensure an appropriate level of immune response to meet the differing demands of developmental processes. Previous research has demonstrated that DELLA proteins physically interact with JASMONATE ZIM-DOMAIN1 (JAZ1) and dynamically regulate the interaction of the gibberellin (GA) and jasmonate (JA) signaling pathways. However, whether and how the JAZ1-DELLA regulatory node is regulated at the transcriptional level in plants under normal growth conditions or during pathogen infection is not known. Here, we demonstrate multiple functions of cotton (Gossypium barbadense) GbWRKY1 in the plant defense response and during development. Although GbWRKY1 expression is induced rapidly by methyl jasmonate and infection by Verticillium dahliae, our results show that GbWRKY1 is a negative regulator of the JA-mediated defense response and plant resistance to the pathogens Botrytis cinerea and V. dahliae. Under normal growth conditions, GbWRKY1-overexpressing lines displayed GA-associated phenotypes, including organ elongation and early flowering, coupled with the down-regulation of the putative targets of DELLA. We show that the GA-related phenotypes of GbWRKY1-overexpressing plants depend on the constitutive expression of Gossypium hirsutum GhJAZ1. We also show that GhJAZ1 can be transactivated by GbWRKY1 through TGAC core sequences, and the adjacent sequences of this binding site are essential for binding specificity and affinity to GbWRKY1, as revealed by dual-luciferase reporter assays and electrophoretic mobility shift assays. In summary, our data suggest that GbWRKY1 is a critical regulator mediating the plant defense-to-development transition during V. dahliae infection by activating JAZ1 expression.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Cotton WRKY1 Mediates the Plant Defense-to-Development Transition during Infection of Cotton byVerticillium dahliaeby ActivatingJASMONATE ZIM-DOMAIN1Expression

Luo

et al. 2014

Plant Physiology

133

View full text Add to dashboard Cite

show abstract

“…Due to the growing demand for oil crops as sources for nutritional oils and biofuels, novel strategies to limit the spread of V. longisporum are needed. Since these can be based on the molecular mechanisms of defense responses, several groups have started to investigate the interaction between V. longisporum and the model plant Arabidopsis (Steventon et al, 2001;Veronese et al, 2003;Johansson et al, 2006;Floerl et al, 2010Floerl et al, , 2012.…”

mentioning

confidence: 99%

The Vascular Pathogen Verticillium longisporum Requires a Jasmonic Acid-Independent COI1 Function in Roots to Elicit Disease Symptoms in Arabidopsis Shoots

et al. 2012

View full text Add to dashboard Cite

Verticillium longisporum is a soil-borne vascular pathogen that causes reduced shoot growth and early senescence in Arabidopsis (Arabidopsis thaliana). Here, we report that these disease symptoms are less pronounced in plants that lack the receptor of the plant defense hormone jasmonic acid (JA), CORONATINE INSENSITIVE1 (COI1). Initial colonization of the roots was comparable in wild-type and coi1 plants, and fungal DNA accumulated to almost similar levels in petioles of wild-type and coi1 plants at 10 d post infection. Completion of the fungal life cycle was impaired in coi1, as indicated by the reduced number of plants with microsclerotia, which are detected on dead plant material at late stages of the disease. Contrary to the expectation that the hormone receptor mutant coi1 should display the same phenotype as the corresponding hormone biosynthesis mutant delayed dehiscence2 (dde2), dde2 plants developed wild-type-like disease symptoms. Marker genes of the JA and the JA/ethylene defense pathway were induced in petioles of wild-type plants but not in petioles of dde2 plants, indicating that fungal compounds that would activate the known COI1-dependent signal transduction chain were absent. Grafting experiments revealed that the susceptibility-enhancing COI1 function acts in the roots. Moreover, we show that the coi1-mediated tolerance is not due to the hyperactivation of the salicylic acid pathway. Together, our results have unraveled a novel COI1 function in the roots that acts independently from JA-isoleucine or any JA-isoleucine mimic. This COI1 activity is required for a yet unknown root-to-shoot signaling process that enables V. longisporum to elicit disease symptoms in Arabidopsis.

show abstract

“…Similarly, a study conducted on two different ecotypes of Arabidopsis (Columbia and Cape Verde Islands) exposed to elevated CO 2 levels revealed that the magnitude of various biological responses, including photosynthesis, starch accumulation, nitrogen content and differential gene expression, varied between the two ecotypes [36]. Ecotypic differences like this are well documented, and have shown to influence flowering time [37], disease resistance [38] as well as oxidative stress tolerance [39], all of which are important aspects of a bioregenerative life support system and potential food source.…”

Section: The Use Of Diverse Genotypes and Speciesmentioning

confidence: 99%

Space, the final frontier: A critical review of recent experiments performed in microgravity

Vandenbrink

Kiss

2016

Plant Science

View full text Add to dashboard Cite

Space biology provides an opportunity to study plant physiology and development in a unique microgravity environment. Recent space studies with plants have provided interesting insights into plant biology, including discovering that plants can grow seed-to-seed in microgravity, as well as identifying novel responses to light. However, spaceflight experiments are not without their challenges, including limited space, limited access, and stressors such as lack of convection and cosmic radiation. Therefore, it is important to design experiments in a way to maximize the scientific return from research conducted on orbiting platforms such as the International Space Station. Here, we provide a critical review of recent spaceflight experiments and suggest ways in which future experiments can be designed to improve the value and applicability of the results generated. These potential improvements include: utilizing in-flight controls to delineate microgravity versus other spaceflight effects, increasing scientific return via next-generation sequencing technologies, and utilizing multiple genotypes to ensure results are not unique to one genetic background. Space experiments have given us new insights into plant biology. However, to move forward, special care should be given to maximize science return in understanding both microgravity itself as well as the combinatorial effects of living in space.

show abstract

Identification of a locus controlling Verticillium disease symptom response in Arabidopsis thaliana

Cited by 166 publications

References 85 publications

Cotton WRKY1 Mediates the Plant Defense-to-Development Transition during Infection of Cotton byVerticillium dahliaeby ActivatingJASMONATE ZIM-DOMAIN1Expression

Cotton WRKY1 Mediates the Plant Defense-to-Development Transition during Infection of Cotton byVerticillium dahliaeby ActivatingJASMONATE ZIM-DOMAIN1Expression

The Vascular Pathogen Verticillium longisporum Requires a Jasmonic Acid-Independent COI1 Function in Roots to Elicit Disease Symptoms in Arabidopsis Shoots

Space, the final frontier: A critical review of recent experiments performed in microgravity

Contact Info

Product

Resources

About