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Liberibacter
''Liberibacter'' is a genus of Gram-negative bacteria in the Rhizobiaceae family. Detection of the liberibacteria is based on PCR amplification of their 16S ribosomal RNA, 16S rRNA gene with specific primers. Members of the genus are plant pathogens mostly transmitted by jumping plant louse, psyllids. The genus was originally spelled ''Liberobacter''. Most importantly, ''Liberibacter'' is a causative agent of Citrus greening disease, Huanglongbing disease (HLB) also known as citrus greening disease. ''Liberibacter'' is transmitted by two insects from Psyllidae family – ''Diaphorina citri'' in Asia, Brazil and Florida, and ''Trioza erytreae'' in Africa. The Asian HLB strain, "''Candidatus'' Liberibacter asiaticus" is more heat tolerant, while the African strain, ''Candidatus'' Liberibacter africanus is asymptomatic at temperatures above 30 °C. Species of ''Liberibacter'', infecting solanaceous plants has been identified and it was carried by another psyllid, a potato pest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liberibacter Solanacearum
''Liberibacter'' is a genus of Gram-negative bacteria in the Rhizobiaceae family. Detection of the liberibacteria is based on PCR amplification of their 16S ribosomal RNA, 16S rRNA gene with specific primers. Members of the genus are plant pathogens mostly transmitted by jumping plant louse, psyllids. The genus was originally spelled ''Liberobacter''. Most importantly, ''Liberibacter'' is a causative agent of Citrus greening disease, Huanglongbing disease (HLB) also known as citrus greening disease. ''Liberibacter'' is transmitted by two insects from Psyllidae family – ''Diaphorina citri'' in Asia, Brazil and Florida, and ''Trioza erytreae'' in Africa. The Asian HLB strain, "''Candidatus'' Liberibacter asiaticus" is more heat tolerant, while the African strain, ''Candidatus'' Liberibacter africanus is asymptomatic at temperatures above 30 °C. Species of ''Liberibacter'', infecting solanaceous plants has been identified and it was carried by another psyllid, a potato pest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liberibacter Europaeus
''Liberibacter'' is a genus of Gram-negative bacteria in the Rhizobiaceae family. Detection of the liberibacteria is based on PCR amplification of their 16S rRNA gene with specific primers. Members of the genus are plant pathogens mostly transmitted by psyllids. The genus was originally spelled ''Liberobacter''. Most importantly, ''Liberibacter'' is a causative agent of Huanglongbing disease (HLB) also known as citrus greening disease. ''Liberibacter'' is transmitted by two insects from Psyllidae family – ''Diaphorina citri'' in Asia, Brazil and Florida, and '' Trioza erytreae'' in Africa. The Asian HLB strain, "''Candidatus'' Liberibacter asiaticus" is more heat tolerant, while the African strain, ''Candidatus'' Liberibacter africanus is asymptomatic at temperatures above 30 °C. Species of ''Liberibacter'', infecting solanaceous plants has been identified and it was carried by another psyllid, a potato pest ''Bactericera cockerelli''. Pathogenicty ''Liberibacter'' b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liberibacter Crescens
''Liberibacter'' is a genus of Gram-negative bacteria in the Rhizobiaceae family. Detection of the liberibacteria is based on PCR amplification of their 16S rRNA gene with specific primers. Members of the genus are plant pathogens mostly transmitted by psyllids. The genus was originally spelled ''Liberobacter''. Most importantly, ''Liberibacter'' is a causative agent of Huanglongbing disease (HLB) also known as citrus greening disease. ''Liberibacter'' is transmitted by two insects from Psyllidae family – ''Diaphorina citri'' in Asia, Brazil and Florida, and '' Trioza erytreae'' in Africa. The Asian HLB strain, "''Candidatus'' Liberibacter asiaticus" is more heat tolerant, while the African strain, ''Candidatus'' Liberibacter africanus is asymptomatic at temperatures above 30 °C. Species of ''Liberibacter'', infecting solanaceous plants has been identified and it was carried by another psyllid, a potato pest ''Bactericera cockerelli''. Pathogenicty ''Liberibacter'' b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liberibacter Brunswickensis
''Liberibacter'' is a genus of Gram-negative bacteria in the Rhizobiaceae family. Detection of the liberibacteria is based on PCR amplification of their 16S rRNA gene with specific primers. Members of the genus are plant pathogens mostly transmitted by psyllids. The genus was originally spelled ''Liberobacter''. Most importantly, ''Liberibacter'' is a causative agent of Huanglongbing disease (HLB) also known as citrus greening disease. ''Liberibacter'' is transmitted by two insects from Psyllidae family – ''Diaphorina citri'' in Asia, Brazil and Florida, and '' Trioza erytreae'' in Africa. The Asian HLB strain, "''Candidatus'' Liberibacter asiaticus" is more heat tolerant, while the African strain, ''Candidatus'' Liberibacter africanus is asymptomatic at temperatures above 30 °C. Species of ''Liberibacter'', infecting solanaceous plants has been identified and it was carried by another psyllid, a potato pest ''Bactericera cockerelli''. Pathogenicty ''Liberibacter'' b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liberibacter Asiaticus
''Liberibacter'' is a genus of Gram-negative bacteria in the Rhizobiaceae family. Detection of the liberibacteria is based on PCR amplification of their 16S rRNA gene with specific primers. Members of the genus are plant pathogens mostly transmitted by psyllids. The genus was originally spelled ''Liberobacter''. Most importantly, ''Liberibacter'' is a causative agent of Huanglongbing disease (HLB) also known as citrus greening disease. ''Liberibacter'' is transmitted by two insects from Psyllidae family – ''Diaphorina citri'' in Asia, Brazil and Florida, and '' Trioza erytreae'' in Africa. The Asian HLB strain, "''Candidatus'' Liberibacter asiaticus" is more heat tolerant, while the African strain, ''Candidatus'' Liberibacter africanus is asymptomatic at temperatures above 30 °C. Species of ''Liberibacter'', infecting solanaceous plants has been identified and it was carried by another psyllid, a potato pest ''Bactericera cockerelli''. Pathogenicty ''Liberibacter'' b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liberibacter Americanus
''Liberibacter'' is a genus of Gram-negative bacteria in the Rhizobiaceae family. Detection of the liberibacteria is based on PCR amplification of their 16S rRNA gene with specific primers. Members of the genus are plant pathogens mostly transmitted by psyllids. The genus was originally spelled ''Liberobacter''. Most importantly, ''Liberibacter'' is a causative agent of Huanglongbing disease (HLB) also known as citrus greening disease. ''Liberibacter'' is transmitted by two insects from Psyllidae family – ''Diaphorina citri'' in Asia, Brazil and Florida, and '' Trioza erytreae'' in Africa. The Asian HLB strain, "''Candidatus'' Liberibacter asiaticus" is more heat tolerant, while the African strain, ''Candidatus'' Liberibacter africanus is asymptomatic at temperatures above 30 °C. Species of ''Liberibacter'', infecting solanaceous plants has been identified and it was carried by another psyllid, a potato pest ''Bactericera cockerelli''. Pathogenicty ''Liberibacter'' b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liberibacter Africanus
''Liberibacter'' is a genus of Gram-negative bacteria in the Rhizobiaceae family. Detection of the liberibacteria is based on PCR amplification of their 16S rRNA gene with specific primers. Members of the genus are plant pathogens mostly transmitted by psyllids. The genus was originally spelled ''Liberobacter''. Most importantly, ''Liberibacter'' is a causative agent of Huanglongbing disease (HLB) also known as citrus greening disease. ''Liberibacter'' is transmitted by two insects from Psyllidae family – ''Diaphorina citri'' in Asia, Brazil and Florida, and '' Trioza erytreae'' in Africa. The Asian HLB strain, "''Candidatus'' Liberibacter asiaticus" is more heat tolerant, while the African strain, ''Candidatus'' Liberibacter africanus is asymptomatic at temperatures above 30 °C. Species of ''Liberibacter'', infecting solanaceous plants has been identified and it was carried by another psyllid, a potato pest ''Bactericera cockerelli''. Pathogenicty ''Liberibacter'' b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Citrus Greening Disease
Citrus greening disease (; or HLB) is a disease of citrus caused by a vector-transmitted pathogen. The causative agents are motile bacteria, ''Liberibacter'' spp. The disease is vectored and transmitted by the Asian citrus psyllid, ''Diaphorina citri'', and the African citrus psyllid, '' Trioza erytreae'', also known as the two-spotted citrus psyllid. It has also been shown to be graft-transmissible. Three different types of HLB are currently known: the heat-tolerant Asian form, and the heat-sensitive African and American forms. The disease was first described in 1929 and first reported in China in 1943. The African variation was first reported in 1947 in South Africa, where it is still widespread. Eventually, it affected the United States, reaching Florida in 2005. Within three years, it had spread to the majority of citrus farms. The rapid increase in this disease has threatened the citrus industry not only in Florida, but the entire US. As of 2009, 33 countries have reported HL ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Citrus Greening Disease
Citrus greening disease (; or HLB) is a disease of citrus caused by a vector-transmitted pathogen. The causative agents are motile bacteria, ''Liberibacter'' spp. The disease is vectored and transmitted by the Asian citrus psyllid, ''Diaphorina citri'', and the African citrus psyllid, '' Trioza erytreae'', also known as the two-spotted citrus psyllid. It has also been shown to be graft-transmissible. Three different types of HLB are currently known: the heat-tolerant Asian form, and the heat-sensitive African and American forms. The disease was first described in 1929 and first reported in China in 1943. The African variation was first reported in 1947 in South Africa, where it is still widespread. Eventually, it affected the United States, reaching Florida in 2005. Within three years, it had spread to the majority of citrus farms. The rapid increase in this disease has threatened the citrus industry not only in Florida, but the entire US. As of 2009, 33 countries have reported HL ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zebra Chip
Zebra chip, also known as ''papa manchada'' and ''papa rayada'', is a disease in potatoes putatively caused by an alphaproteobacteria "''Candidatus'' Liberibacter solanacearum", which is vectored by the potato psyllid. When fried, potato tubers from infected plants develop unsightly black lines resembling the stripes of zebras that render the chips unsellable. Additionally, striped sections of chips frequently burn and caramelize, resulting in a bitter flavor. No health risks have been connected with consumption of infected potato chips. Emergence Zebra chip was first identified in 1994 near Saltillo, Mexico, and was originally named ''papa manchada'' (stained potato). In the early 1990s, Texas potato farms reported afflictions, though the disease was not identified in the state until 2000. Since then, zebra chip has been reported in the U.S. states of Arizona, California, Colorado, Idaho, Oregon, Kansas, Nebraska, and New Mexico. Since 2000, Guatemala reported a disease known ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trioza Erytreae
The African citrus psyllid (''Trioza erytreae'') is a sap-sucking insect, a hemipteran bug in the family Triozidae. It is an important pest of citrus, being one of only two known vectors of the serious citrus disease, '' huanglongbing'' or citrus greening disease. It is widely distributed in Africa. The other vector is the Asian citrus psyllid, ''Diaphorina citri''.EPPO Distribution The citrus psyllid is found in Cameroon, Comoros, Ethiopia, Kenya, Madagascar, Malawi, Mauritius, Réunion, Rwanda, South Africa, St. Helena, Sudan, Swaziland, Tanzania, Uganda, Zaire, Zambia, and Zimbabwe. It is also found in Saudi Arabia, Yemen, and the Macaronesian archipelagos of Madeira and the Canary islands. It is sensitive to hot, dry conditions and favours cool, moist areas 500 m above sea level. Re ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bactericera Cockerelli
''Bactericera cockerelli'', also known as the potato psyllid, is a species of Psylloidea, psyllid native to southern North America. Its range extends from Central America north to the American Pacific Northwest and parts of Manitoba, in Canada. It is restricted to the western part of the continent. As its name suggests, it is commonly found on potato and tomato crops, but has a species range that encompasses over 40 species of Solanaceae, solanaceous plants and as many as 20 genera. Breeding hosts are generally recognised as being restricted primarily to Solanaceae, including important crop and common weed species, and a few species of Convolvulaceae, including bindweed and sweet potato. On some plants, especially potato, feeding of the nymphs causes a condition called psyllid yellows, presumed to be the result of a toxin. Both nymphs and adults can transmit the bacterium Candidatus Liberibacter. Zebra chip is a recently diagnosed disease of potatoes associated with psyll ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
