نتایج جستجو برای: candidatus leiberibacter asiaticus

تعداد نتایج: 3252  

Journal: :Phytopathology 2009
Wenbin Li Laurene Levy John S Hartung

Citrus huanglongbing (HLB), or greening disease, is strongly associated with any of three nonculturable gram-negative bacteria belonging to 'Candidatus Liberibacter spp.' 'Ca. Liberibacter spp.' are transmitted by citrus psyllids to all commercial cultivars of citrus. The diseases can be lethal to citrus and have recently become widespread in both São Paulo, Brazil, and Florida, United States, ...

Journal: :Phytopathology 2008
Satyanarayana Tatineni Uma Shankar Sagaram Siddarame Gowda Cecile J Robertson William O Dawson Toru Iwanami Nian Wang

Huanglongbing (HLB) is one of the most devastating diseases of citrus worldwide, and is caused by a phloem-limited fastidious prokaryotic alpha-proteobacterium that is yet to be cultured. In this study, a combination of traditional polymerase chain reaction (PCR) and real-time PCR targeting the putative DNA polymerase and 16S rDNA sequence of 'Candidatus Liberibacter asiaticus,' respectively, w...

Journal: :Molecular and cellular probes 2013
Madhugiri Nageswara-Rao Shin-Ichi Miyata Dilip Ghosh Mike Irey Stephen M Garnsey Siddarame Gowda

Citrus huanglongbing (HLB or citrus greening) is one of the most devastating diseases of citrus worldwide. The disease is caused by Gram-negative, phloem-limited α-proteobacterium, 'Candidatus Liberibacter asiaticus', vectored by the psyllid, Diaphorina citri Kuwayama. Citrus plants infected by the HLB bacterium may not show visible symptoms sometimes for years following infection and non-unifo...

Journal: :Bioorganic & medicinal chemistry letters 2011
Nagaraju Akula Hong Zheng Frank Q Han Nian Wang

Candidatus Liberibacter asiaticus is the causal agent of Huanglongbing (HLB) disease of citrus. Current management practices have not been able to control HLB and stop the spread of HLB. The current study is focused on screening small molecule inhibitors against SecA protein of Ca. L. asiaticus. Homology modeling, structure based virtual screening and molecular docking methods have been used to...

Journal: :Plant Disease 2021

‘Candidatus Liberibacter asiaticus’ is an insect-transmitted, phloem-restricted ?-proteobacterium associated with huanglongbing. Here, we provide the whole genome sequence of ‘Ca. L. strain ReuSP1 from its insect vector Diaphorina citri (Hemiptera: Liviidae) collected in La Réunion. The composed 1,230,064 bp and has a 36.5% G+C content. This study reports first Réunion, which will add to resour...

Journal: :Genetics and molecular research : GMR 2016
W W Cheng D Q Wang C Y Wang H Du Q W Wei

Studies of genetic diversity and genetic population structure are critical for the conservation and management of endangered species. The Chinese sucker Myxocyprinus asiaticus is a vulnerable monotypic species in China, which is at a risk of decline owing to fluctuations in effective population size and other demographic and environmental factors. We screened 11 microsatellite loci in 214 indiv...

2009
M. M. Faghihi M. Salehi A. Bagheri K. Izadpanah

Huanglongbing (HLB), also known as greening, is a destructive disease of citrus that may limit production of this crop in many parts of Asia, Africa and South America. HLB is caused by a non-culturable phloem-limited bacterium of the genus ‘ Candidatus Liberibacter’. Three Candidatus species of Liberibacter, namely, ‘ Ca . L. asiaticus’, ‘ Ca . L. africanus’ and ‘ Ca . L. americanus’, have been...

Journal: :Phytopathology 2013
Mark E Hilf Kenneth R Sims Svetlana Y Folimonova Diann S Achor

'Candidatus Liberibacter asiaticus' is the bacterium implicated as a causal agent of the economically damaging disease of citrus called huanglongbing (HLB). Vertical transmission of the organism through seed to the seedling has not been demonstrated. Previous studies using real-time polymerase chain reaction assays indicated abundant bacterial 16S rRNA sequences in seed coats of citrus seed but...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شاهد - دانشکده کشاورزی 1391

بیماری میوه سبز مرکبات توسط باکتری سخت کشت candidatus liberobacter asiaticus ایجاد می شود که اولین بار در چین توصیف شده است و در سال 1919 با نام رسمی huanglongbing معرفی گردید. این بیماری یکی از پرخسارت ترین بیماری های مرکبات درجنوب شرقی آسیا، شبه قاره هند، آفریقای جنوبی و شبه جزیره عربستان است. این بیماری در سال 1386 از جنوب ایران گزارش گردید. برای درک مکانیسم مولکولی برهمکنش میزبان-پاتوژن از ...

Journal: :Phytopathology 2013
Nian Wang Pankaj Trivedi

Citrus huanglongbing (HLB) is one of the oldest citrus diseases and has been known for over a century. HLB is caused by 'Candidatus Liberibacter' spp. that are phloem-limited, fastidious α-proteobacteria and infect hosts in different Kingdoms (i.e., Animalia and Plantae). When compared with well-characterized, cultivatable plant-pathogenic Gram-negative bacteria, the interactions of uncultured ...

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