Serratia marcescens, a Phloem-Colonizing, Squash Bug -Transmitted Bacterium: Causal Agent of Cucurbit Yellow Vine Disease

Plant Disease
B D BrutonT W Popham

Abstract

Cucurbit yellow vine disease (CYVD), which can inflict heavy losses to watermelon, pumpkin, cantaloupe, and squash in U.S. production areas from the midwest to northeastern states, causes phloem discoloration, foliar yellowing, wilting, and plant decline. Bacteria were cultured from the phloem of crown sections of symptomatic plants of Citrullus lanatas and Cucurbita pepo. Those bacteria testing positive in CYVD-specific polymerase chain reaction (PCR) were all gram negative and appeared morphologically identical, producing creamy white, smooth, entire, convex colonies on Luria-Bertani or nutrient agar. Characterized cucurbit-derived strains of Serratia marcescens were introduced into greenhouse-grown squash plants by puncture inoculation and into field-grown squash plants by enclosure with S. marcescens-fed squash bugs, Anasa tristis. Up to 60% of the bacteria-inoculated plants in the greenhouse and up to 17% of field plants caged with inoculative squash bugs developed phloem discoloration and tested positive for S. marcescens by CYVD-specific PCR. None of the controls developed phloem discoloration or tested positive by PCR. Of the diseased field plants, 12% (2 of 35) also yellowed, wilted, and collapsed, exhibiting full symp...Continue Reading

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Citations

Feb 5, 2019·Journal of Experimental Botany·David WariIvan Galis
May 13, 2017·Genome Announcements·Joseph HongerGeorge P C Salmond
Nov 11, 2017·Journal of Economic Entomology·James M Wilson, Thomas P Kuhar
Apr 24, 2008·Proceedings. Biological Sciences·Ville-Petri FrimanVeijo Kaitala
Jun 19, 2008·Environmental Entomology·Kimberly B Decker, Kenneth V Yeargan
Sep 10, 2013·Canadian Journal of Microbiology·Lauren M Petersen, Louis S Tisa
Aug 25, 2016·Frontiers in Plant Science·Laura M Perilla-Henao, Clare L Casteel
Apr 6, 2019·Microbiology Resource Announcements·Nicole C ElledgeJeffrey W Turner
Dec 21, 2016·Molecular Plant Pathology·Claire Bendix, Jennifer D Lewis
Dec 29, 2020·Journal of Insect Science·Cesar Rodriguez-SaonaNicolas Firbas
Jan 5, 2019·Journal of Agricultural and Food Chemistry·Jin-Wei ZhouAi-Qun Jia
Oct 21, 2021·Applied and Environmental Microbiology·Sandra Y MendiolaNicole M Gerardo

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