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Blackleg is a plant disease of potato caused by pectolytic bacteria that can result in stunting, wilting, chlorosis of leaves, necrosis of several tissues, a decline in yield, and at times the death of the potato plant. The term "blackleg" originates from the typical blackening and decay of the lower stem portion, or "leg", of the plant. [1]
The host for Dickeya solani is the potato plant (Solanum tuberosum).Dickeya spp. can be the causal agents of soft rots and black leg. The symptoms that this bacteria causes can at times not be easily distinguished from the symptoms caused by Pectobacterium spp, since both pathogens induce a rotting of the plant tissue and black leg symptoms on the host.
Leptosphaeria maculans (anamorph Phoma lingam) is a fungal pathogen of the phylum Ascomycota that is the causal agent of blackleg disease on Brassica crops. Its genome has been sequenced, [2] and L. maculans is a well-studied model phytopathogenic fungus. Symptoms of blackleg generally include basal stem cankers, small grey lesions on leaves ...
This causes the cells to separate, a disease plant pathologists term bacterial soft rot. Specifically, it causes beet vascular necrosis and blackleg of potato and other vegetables (hence the name carotovora – "carrot-eater"), as well as slime flux on many different tree species. [2]
Plant diseases are diseases in plants caused by pathogens (infectious organisms) and environmental conditions (physiological factors). [1] Organisms that cause infectious disease include fungi , oomycetes , bacteria , viruses , viroids , virus -like organisms, phytoplasmas , protozoa , nematodes and parasitic plants . [ 2 ]
A 2023 review of studies published in the journal GeroScience found that walking appeared to decrease the risk of cardiovascular disease, type 2 diabetes, cognitive impairment, and dementia, while ...
Blackleg of potato symptoms showing darkened stem and leaf wilt on potato caused by the plant pathogen. Pectobacterium atrosepticum is a species of bacterium. It is a plant pathogen causing blackleg of potato. [1] Its type strain is CFBP 1526 T (=LMG 2386 T =NCPPB 549 T =ICMP 1526 T). [2] Its genome has been sequenced. [3]
Hypersensitive response (HR) is a mechanism used by plants to prevent the spread of infection by microbial pathogens.HR is characterized by the rapid death of cells in the local region surrounding an infection and it serves to restrict the growth and spread of pathogens to other parts of the plant.