NDLI: Identification of new resistant sources for bacterial blight in pomegranate

Content Provider	Springer Nature Link
Author	Priya, B. Tanuja Murthy, B. N. S. Gopalakrishnan, C. Artal, Rashmi B. Jagannath, S.
Copyright Year	2016
Abstract	Bacterial blight is a highly devastating disease caused by Xanthomonas axonopodis pv. punicae, recording 60 to 80 percent yield-loss of pomegranate in India. In the present investigation, a total of 209 genotypes including 105 exotic types from USDA, 66 wild types and 38 cultivated types from India were screened and categorized into fifteen clusters using cluster and principal component analysis. Genotypes of cluster 15, viz. 108 B and 99 A from USDA and 318734, Daru-18 and IIHR-30 from India, were found to be resistant to bacterial blight while genotypes of cluster 9 were highly susceptible. Two genotypes, each from cluster 15 (318734) and 9 (Ruby), were compared for biochemical and histological parameters to understand the defense mechanism. Significantly, higher accumulation of defense related metabolites, viz. total phenol, flavonoid and antioxidant contents, were observed in resistant genotype (318734). Fewer numbers of stomatal pores that served as portals of entry for plant pathogens were recorded in this genotype. Resistance observed in genotype 318734 might be due to an incompatible interaction between host and pathogen compared to other genotypes. This is the first report of putative resistance sources in pomegranate against Xanthomonas axonopodis pv. punicae.
Starting Page	609
Ending Page	624
Page Count	16
File Format	PDF
ISSN	09291873
Journal	European Journal of Plant Pathology
Volume Number	146
Issue Number	3
e-ISSN	15738469
Language	English
Publisher	Springer Netherlands
Publisher Date	2016-04-29
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Pomegranate Bacterial blight Xanthomonas axonopodis pv. punicae Resistant source Germplasm USDA India Plant Pathology Plant Sciences Ecology Agriculture Life Sciences
Content Type	Text
Resource Type	Article
Subject	Plant Science Horticulture Agronomy and Crop Science

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