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<p>CSV import</p> <p><b>New page</b></p><div>[[File:Blackleg_of_Potato_Stem_Wilt.png|thumb|Blackleg of Potato Stem Wilt]] &#039;&#039;&#039;Pectobacterium atrosepticum&#039;&#039;&#039; is a species of [[bacterium]] in the family [[Pectobacteriaceae]]. It is a plant pathogen known for causing [[blackleg]] and [[tuber]] [[soft rot]] in [[potato]]es. This bacterium is a significant concern in [[agriculture]] due to its impact on [[crop yield]] and [[quality]].<br /> <br /> ==Taxonomy and Classification==<br /> Pectobacterium atrosepticum belongs to the [[domain]] [[Bacteria]], [[phylum]] [[Proteobacteria]], [[class]] [[Gammaproteobacteria]], [[order]] [[Enterobacterales]], and [[family]] [[Pectobacteriaceae]]. It was previously classified under the genus [[Erwinia]] but was reclassified based on [[molecular phylogenetics]].<br /> <br /> ==Morphology and Physiology==<br /> Pectobacterium atrosepticum is a [[Gram-negative]] rod-shaped bacterium. It is [[facultatively anaerobic]], meaning it can grow in both the presence and absence of [[oxygen]]. The bacterium is [[motile]] due to the presence of [[peritrichous flagella]].<br /> <br /> ==Pathogenicity==<br /> Pectobacterium atrosepticum is a pathogen primarily affecting [[potato]] plants. It causes [[blackleg]] disease, characterized by blackening and rotting of the [[stem]] base, and [[tuber]] [[soft rot]], which leads to the decay of [[potato]] [[tubers]]. The bacterium produces [[pectolytic enzymes]] that degrade [[plant cell walls]], facilitating the spread of infection.<br /> <br /> ==Symptoms==<br /> The symptoms of infection by Pectobacterium atrosepticum include:<br /> * Blackening of the [[stem]] base ([[blackleg]])<br /> * Soft, watery rot of [[tuber]]s ([[soft rot]])<br /> * Foul odor due to the breakdown of plant tissues<br /> <br /> ==Transmission and Spread==<br /> Pectobacterium atrosepticum is spread through contaminated [[soil]], [[water]], and [[plant material]]. It can enter plants through [[wounds]] or natural openings. The bacterium thrives in wet and warm conditions, which facilitate its spread and infection.<br /> <br /> ==Control and Management==<br /> Managing Pectobacterium atrosepticum involves several strategies:<br /> * Use of [[disease-resistant]] [[potato]] [[varieties]]<br /> * Proper [[crop rotation]] to reduce [[soil]] [[inoculum]]<br /> * Sanitation practices to prevent the spread of the bacterium<br /> * Avoiding [[over-irrigation]] and ensuring proper [[drainage]]<br /> <br /> ==Research and Development==<br /> Ongoing research aims to better understand the [[genomics]] and [[pathogenesis]] of Pectobacterium atrosepticum to develop more effective control measures. Studies focus on the [[bacterium]]&#039;s [[virulence factors]], [[host-pathogen interactions]], and potential [[biocontrol]] agents.<br /> <br /> ==See Also==<br /> * [[Pectobacterium]]<br /> * [[Blackleg]]<br /> * [[Soft rot]]<br /> * [[Potato diseases]]<br /> <br /> ==References==<br /> {{Reflist}}<br /> <br /> ==External Links==<br /> {{Commons category|Pectobacterium atrosepticum}}<br /> <br /> [[Category:Pectobacteriaceae]]<br /> [[Category:Plant pathogens and diseases]]<br /> [[Category:Bacterial plant pathogens and diseases]]<br /> [[Category:Potato diseases]]<br /> <br /> {{food-stub}}</div>

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