scholarly journals Drought Stress Acclimation Imparts Tolerance to Sclerotinia sclerotiorum and Pseudomonas syringae in Nicotiana benthamiana

2013 ◽  
Vol 14 (5) ◽  
pp. 9497-9513 ◽  
Author(s):  
Venkategowda Ramegowda ◽  
Muthappa Senthil-Kumar ◽  
Yasuhiro Ishiga ◽  
Amita Kaundal ◽  
Makarla Udayakumar ◽  
...  
Keyword(s):  
Drought Stress ◽  
Pseudomonas Syringae ◽  
Sclerotinia Sclerotiorum ◽  
Nicotiana Benthamiana ◽  
Stress Acclimation

scholarly journals The hrpZ Gene of Pseudomonas syringae pv. phaseolicola Enhances Resistance to Rhizomania Disease in Transgenic Nicotiana benthamiana and Sugar Beet

PLoS ONE ◽  
2011 ◽  
Vol 6 (3) ◽  
pp. e17306 ◽  
Author(s):  
Ourania I. Pavli ◽  
Georgia I. Kelaidi ◽  
Anastasia P. Tampakaki ◽  
George N. Skaracis
Keyword(s):  
Sugar Beet ◽  
Pseudomonas Syringae ◽  
Nicotiana Benthamiana

scholarly journals Recurrent Selection by Herbicide Sublethal Dose and Drought Stress Results in Rapid Reduction of Herbicide Sensitivity in Junglerice

Agronomy ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1619 ◽  
Author(s):  
Lariza Benedetti ◽  
Gulab Rangani ◽  
Vívian Ebeling Viana ◽  
Pâmela Carvalho-Moore ◽  
Edinalvo Rabaioli Camargo ◽  
...  
Keyword(s):  
Drought Stress ◽  
Recurrent Selection ◽  
Field Capacity ◽  
Joint Effect ◽  
Sublethal Dose ◽  
Rapid Reduction ◽  
Antioxidant Genes ◽  
Original Population ◽  
Stress Acclimation ◽  
Selection Of

Echinochloa colona (junglerice) is a problematic global weed for many crops, primarily controlled with herbicides. Drought stress alters the overall plant physiology and reduces herbicide efficacy. This research aimed to study the joint effect of drought stress (DS) and recurrent selection with sublethal dose of herbicide on adaptive gene expression and herbicide efficacy on E. colona. Three factors were evaluated: (A) E. colona generation (G0, original population from susceptible standard; G1 and G2, progenies of recurrent selection); (B) herbicide treatment (florpyrauxifen-benzyl, 0.25×; glyphosate, 0.125×; quinclorac, 0.125× the recommended dose; and nontreated check); (C) DS (50% and 100% field capacity). Recurrent exposure to sublethal herbicide dose, combined with drought stress, favors the selection of plants less susceptible to the herbicide. Upregulation of defense (antioxidant) genes (APX: ascorbate peroxidase), herbicide detoxification genes (CYP450 family: cytochrome P450), stress acclimation genes (HSP: heat-shock protein, TPP: trehalose phosphate phosphatase, and TPS: trehalose phosphate synthase), and genes related to herbicide conjugation (UGT: UDP glucosyltransferase) in the G2 population was significant. Recurrent exposure to sublethal herbicide dose under drought stress reduces junglerice sensitivity to herbicide, seemingly due to “imprinted” upregulation of metabolic and protection genes in response to these stresses.

scholarly journals A Pseudomonas syringae pv. tomato DC3000 mutant lacking the type III effector HopQ1-1 is able to cause disease in the model plant Nicotiana benthamiana

2007 ◽  
Vol 51 (1) ◽  
pp. 32-46 ◽  
Author(s):  
Chia-Fong Wei ◽  
Brian H. Kvitko ◽  
Rena Shimizu ◽  
Emerson Crabill ◽  
James R. Alfano ◽  
...  
Keyword(s):  
Pseudomonas Syringae ◽  
Nicotiana Benthamiana ◽  
Tomato Dc3000 ◽  
Type Iii Effector ◽  
Model Plant ◽  
Type Iii

scholarly journals The involvement of two epoxide hydrolase genes, NbEH1.1 and NbEH1.2, of Nicotiana benthamiana in the interaction with Colletotrichum destructivum, Colletotrichum orbiculare or Pseudomonas syringae pv. tabaci

2008 ◽  
Vol 35 (11) ◽  
pp. 1112 ◽  
Author(s):  
C. P. Wijekoon ◽  
P. H. Goodwin ◽  
T. Hsiang
Keyword(s):  
Pseudomonas Syringae ◽  
Nicotiana Benthamiana ◽  
Epoxide Hydrolase ◽  
Virus Induced Gene Silencing ◽  
Colletotrichum Orbiculare ◽  
Hypersensitive Resistance ◽  
Resistance Response ◽  
Colletotrichum Destructivum ◽  
Vicinal Diols ◽  
Epoxy Alcohols

Epoxide hydrolase hydrates epoxides to vicinal diols in the phyto-oxylipin peroxygenase pathway resulting in the production of epoxy alcohols, dihydrodiols, triols and epoxides, including many lipid epoxides associated with resistance. Two epoxide hydrolase genes from Nicotiana benthamiana L., NbEH1.1 and NbEH1.2, were amplified from coding DNA of leaves during a susceptible response to the hemibiotrophic pathogens, Colletotrichum destructivum O’Gara, Colletotrichum orbiculare Berk. and Mont. von Arx. or Pseudomonas syringae pv. tabaci Wolf and Foster, or the hypersensitive resistance response to P. syringae pv. tabaci expressing avrPto. Increases in expression of NbEH1.1 generally occurred during the late biotrophic and necrotrophic stages in the susceptible responses and before the hypersensitive response. NbEH1.2 expression was not significantly induced by C. orbiculare but was induced by C. destructivum, P. syringae pv. tabaci and P. syringae pv. tabaci expressing avrPto, although to a lesser degree than NbEH1.1. Virus-induced gene silencing of NbEH1.1 delayed the appearance of lesions for C. destructivum, reduced populations of P. syringae pv. tabaci and increased populations of P. syringae pv. tabaci expressing avrPto. The importance of epoxide hydrolase during pathogen attack may be related to its roles in detoxification, signalling, or metabolism of antimicrobial compounds.

scholarly journals A Soybean bZIP Transcription Factor GmbZIP19 Confers Multiple Biotic and Abiotic Stress Responses in Plant

2020 ◽  
Vol 21 (13) ◽  
pp. 4701
Author(s):  
Qing He ◽  
Hanyang Cai ◽  
Mengyan Bai ◽  
Man Zhang ◽  
Fangqian Chen ◽  
...  
Keyword(s):  
Transcription Factor ◽  
Drought Stress ◽  
Pseudomonas Syringae ◽  
Stress Responses ◽  
Stomatal Closure ◽  
Negative Regulator ◽  
Marker Genes ◽  
Genes Expression ◽  
Salt And Drought Stress ◽  
Salt And Drought Stresses

The basic leucine zipper (bZIP) is a plant-specific transcription factor family that plays crucial roles in response to biotic and abiotic stresses. However, little is known about the function of bZIP genes in soybean. In this study, we isolated a bZIP gene, GmbZIP19, from soybean. A subcellular localization study of GmbZIP19 revealed its nucleus localization. We showed that GmbZIP19 expression was significantly induced by ABA (abscisic acid), JA (jasmonic acid) and SA (salicylic acid), but reduced under salt and drought stress conditions. Further, GmbZIP19 overexpression Arabidopsis lines showed increased resistance to S. sclerotiorum and Pseudomonas syringae associated with upregulated ABA-, JA-, ETH- (ethephon-)and SA-induced marker genes expression, but exhibited sensitivity to salt and drought stresses in association with destroyed stomatal closure and downregulated the salt and drought stresses marker genes’ expression. We generated a soybean transient GmbZIP19 overexpression line, performed a Chromatin immunoprecipitation assay and found that GmbZIP19 bound to promoters of ABA-, JA-, ETH-, and SA-induced marker genes in soybean. The yeast one-hybrid verified the combination. The current study suggested that GmbZIP19 is a positive regulator of pathogen resistance and a negative regulator of salt and drought stress tolerance.

Overexpressing Jatropha curcas CBF2 in Nicotiana benthamiana improved plant tolerance to drought stress

Gene ◽  
2020 ◽  
Vol 742 ◽  
pp. 144588 ◽  
Author(s):  
Linghui Wang ◽  
Yan Wu ◽  
Yinshuai Tian ◽  
Tingwei Dai ◽  
Guilan Xie ◽  
...  
Keyword(s):  
Drought Stress ◽  
Jatropha Curcas ◽  
Nicotiana Benthamiana ◽  
Plant Tolerance
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