Luana Laurindo de Melo, Daniele Maria do Nascimento, José Marcelo Soman, João César Lourencetti da Silva, Maria Márcia Pereira Sartori, Antonio Carlos Maringoni, Tadeu Antônio Fernandes da Silva Júnior
{"title":"Survival niches of Pseudomonas savastanoi pv. glycinea, causal agent of bacterial blight in soybean (Glycine max L.)","authors":"Luana Laurindo de Melo, Daniele Maria do Nascimento, José Marcelo Soman, João César Lourencetti da Silva, Maria Márcia Pereira Sartori, Antonio Carlos Maringoni, Tadeu Antônio Fernandes da Silva Júnior","doi":"10.1007/s40858-024-00642-8","DOIUrl":null,"url":null,"abstract":"<p>Bacterial blight caused by <i>Pseudomonas</i> <i>savastanoi</i> pv. <i>glycinea</i> (Psg) is a prevalent disease in soybean crops worldwide, and crop rotation is a potential management strategy. However, the importance of alternative crops and soil as hosts of Psg is not well understood. This study aimed to assess the survival of Psg in four soil types, the phyllosphere, and rhizosphere of 12 crops rotated with soybean, and endophytic colonization of crops by Psg. The pathogenic strain Soj. 1462 of Psg, resistant to rifampicin, was used in all experiments, and culturing followed by PCR confirmed bacterial survival. Psg survived for a maximum of two days in all soil types. In both survival niches, phyllosphere and rhizosphere, sunn hemp, common bean, and turnip proved to be the crops with a shorter Psg survival period, lasting less than 28 days, while the remaining evaluated crops exhibited longer survival periods. In endophytic colonization, Psg survived for less than 35 days in these crops when inoculated in artificially wounded plants. When inoculated by spray in the same crops, the highest Psg survival was recorded up to 28 days. To reduce Psg inoculum, it is advisable to cultivate sunn hemp, common bean, and turnip in succession with soybean, given their comparatively lower recorded survival periods.</p>","PeriodicalId":23354,"journal":{"name":"Tropical Plant Pathology","volume":"1 1","pages":""},"PeriodicalIF":2.5000,"publicationDate":"2024-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Tropical Plant Pathology","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1007/s40858-024-00642-8","RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Agricultural and Biological Sciences","Score":null,"Total":0}
引用次数: 0
Abstract
Bacterial blight caused by Pseudomonassavastanoi pv. glycinea (Psg) is a prevalent disease in soybean crops worldwide, and crop rotation is a potential management strategy. However, the importance of alternative crops and soil as hosts of Psg is not well understood. This study aimed to assess the survival of Psg in four soil types, the phyllosphere, and rhizosphere of 12 crops rotated with soybean, and endophytic colonization of crops by Psg. The pathogenic strain Soj. 1462 of Psg, resistant to rifampicin, was used in all experiments, and culturing followed by PCR confirmed bacterial survival. Psg survived for a maximum of two days in all soil types. In both survival niches, phyllosphere and rhizosphere, sunn hemp, common bean, and turnip proved to be the crops with a shorter Psg survival period, lasting less than 28 days, while the remaining evaluated crops exhibited longer survival periods. In endophytic colonization, Psg survived for less than 35 days in these crops when inoculated in artificially wounded plants. When inoculated by spray in the same crops, the highest Psg survival was recorded up to 28 days. To reduce Psg inoculum, it is advisable to cultivate sunn hemp, common bean, and turnip in succession with soybean, given their comparatively lower recorded survival periods.
期刊介绍:
Tropical Plant Pathology is an international journal devoted to publishing a wide range of research on fundamental and applied aspects of plant diseases of concern to agricultural, forest and ornamental crops from tropical and subtropical environments.
Submissions must report original research that provides new insights into the etiology and epidemiology of plant disease as well as population biology of plant pathogens, host-pathogen interactions, physiological and molecular plant pathology, and strategies to promote crop protection.
The journal considers for publication: original articles, short communications, reviews and letters to the editor. For more details please check the submission guidelines.
Founded in 1976, the journal is the official publication of the Brazilian Phytopathology Society.