scholarly journals Variability in the resistance to bacterial spot causal agents Xanthomonas euvesicatoria P and Xanthomonas vesicatoria PT2 among Bulgarian and introduced pepper varieties

2016 ◽  
Vol 8 (1) ◽  
pp. 75-78 ◽  
Author(s):  
T. Vancheva ◽  
S. Masheva ◽  
D. Ganeva ◽  
N. Bogatzevska
Keyword(s):  
Bacterial Spot ◽  
Xanthomonas Euvesicatoria ◽  
Xanthomonas Vesicatoria

Xanthomonas vesicatoria virulence factors involved in early stages of bacterial spot development in tomato

2018 ◽  
Vol 67 (9) ◽  
pp. 1936-1943 ◽  
Author(s):  
V. Felipe ◽  
A. M. Romero ◽  
M. S. Montecchia ◽  
A. A. Vojnov ◽  
M. I. Bianco ◽  
...  
Keyword(s):  
Virulence Factors ◽  
Bacterial Spot ◽  
Early Stages ◽  
Xanthomonas Vesicatoria

CONDITIONS FOR SYMPTOMATOLOGICAL DIFFERENTIATION OF BACTERIAL CANKER, SPOT, AND SPECK ON TOMATO SEEDLINGS

1966 ◽  
Vol 46 (5) ◽  
pp. 525-530 ◽  
Author(s):  
P. K. Basu
Keyword(s):  
Bacterial Canker ◽  
Bacterial Spot ◽  
Inoculum Concentration ◽  
Tomato Seedlings ◽  
Leaf Spots ◽  
Greenish Yellow ◽  
Brown Leaf ◽  
High Incidence ◽  
Bacterial Spot Disease ◽  
Xanthomonas Vesicatoria

Bacterial canker, spot, and speck of tomatoes (Lycopersicon esculentum Mill.) caused by Corynebacterium michiganense (E.F.S.) Jensen, Xanthomonas vesicatoria (Doidge) Dows., and Pseudomonas tomato (Okabe) Burk., respectively, were symptomatologically differentiated on 2- to 3-week-old spray-inoculated seedlings only under conditions of 87–97% relative humidity and 23–28 °C temperature. The numerical threshold of infection of both C. michiganense and P. tomato was 1 × 106 cells/ml and that of X. vesicatoria was 1 × 103 cells/ml. Preinoculation host injury and an inoculum concentration of 1 × 108 cells/ml were most favorable for high incidence of the diseases.Characteristic symptoms incited by the canker organism were (1) small whitish pimple-like spots developing into raised blister-like lesions on the lamina, (2) elongated swellings on veins, and (3) cankers on the hypocotyl. The distinctive symptoms of the bacterial spot disease were (1) small greenish-yellow to brown leaf spots, (2) large yellow blotches becoming necrotic and producing a severe blight effect on leaves, and (3) light-brown streaks on the hypocotyl. The distinguishing symptoms of the speck disease were discrete dark-brown spots and occasional marginal necrotic areas on leaves and cotyledons. On cotyledons, both C. michiganense and X. vesicatoria produced identical minute whitish flaky spots often with greenish centers. Sometimes these spots coalesced and resulted in wrinkling of the surface of the cotyledon.

scholarly journals Selection of antagonists for biocontrol of Xanthomonas euvesicatoria

2020 ◽  
pp. 181-189
Author(s):  
Ivana Pajcin ◽  
Vanja Vlajkov ◽  
Dragoljub Cvetkovic ◽  
Maja Ignjatov ◽  
Mila Grahovac ◽  
...  
Keyword(s):  
Biological Control ◽  
Plant Disease ◽  
Plant Pathogens ◽  
Plant Diseases ◽  
Bacterial Spot ◽  
Cultivation Medium ◽  
Microbial Strains ◽  
Xanthomonas Euvesicatoria ◽  
Selection Of

Xanthomonas euvesicatoria is a worldwide causer of pepper bacterial spot, a bacterial plant disease responsible for massive losses of fresh pepper fruits. Considering the current problems in management of bacterial plant diseases, biological control using antagonistic microbial strains with high potential for plant pathogens suppression emerges as a possible solution. The aim of this study was to select suitable antagonists for suppression of X. euvesicatoria among the bacteria, yeast and fungi from the genera Pseudomonas, Lactobacillus, Saccharomyces and Trichoderma, based on in vitro antimicrobial activity testing using the diffusion disc method. The results of this study have revealed that cultivation broth samples of the antagonists Lactobacillus MK3 and Trichoderma reseii QM 9414, as well as supernatant samples of the antagonist Pseudomonas aeruginosa I128, have showed significant potential to be applied in biological control of X. euvesicatoria. Further research would be required to formulate suitable cultivation medium and optimize bioprocess conditions for production of the proposed pepper bacterial spot biocontrol agents.

scholarly journals Controlling activity of Bion-M against bacterial spot caused by Xanthomonas euvesicatoria

2012 ◽  
Vol 16 (2) ◽  
pp. 171-177 ◽  
Author(s):  
A-Hyeong Kim ◽  
Cho-Long Yeon ◽  
Joo-Hyung Kim ◽  
Heung-Tae Kim
Keyword(s):  
Bacterial Spot ◽  
Xanthomonas Euvesicatoria

scholarly journals Complete Genome Sequence of Xanthomonas vesicatoria Bacteriophage ΦXaF18, a Contribution to the Biocontrol of Bacterial Spot of Pepper in Mexico

2020 ◽  
Vol 9 (16) ◽  
Author(s):  
Marcela Ríos-Sandoval ◽  
Evangelina Esmeralda Quiñones-Aguilar ◽  
Guillermo Alejandro Solís-Sánchez ◽  
Jhony Navat Enríquez-Vara ◽  
Gabriel Rincón-Enríquez
Keyword(s):  
Solanum Lycopersicum ◽  
Capsicum Annuum ◽  
Genome Sequence ◽  
Complete Genome Sequence ◽  
Complete Genome ◽  
Bacterial Spot ◽  
Protein Coding ◽  
Content Type ◽  
Protein Coding Genes ◽  
Xanthomonas Vesicatoria

Bacteriophage ΦXaF18 infects Xanthomonas vesicatoria, which is the causal agent of bacterial spot in tomato (Solanum lycopersicum L.) and pepper (Capsicum annuum L.). In this announcement, we present the complete genome of X. vesicatoria bacteriophage ΦXaF18, a 47,407-bp genome with 67 protein-coding genes.

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