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Distribuição de Diaphorina citri (Hemiptera: Liviidae) e detecção de Candidatus Liberibacter asiaticus em regiões citrícolas do Paraná

Citation
Nunes et al. (2024). CONTRIBUCIONES A LAS CIENCIAS SOCIALES 17 (2)
Names
Ca. Liberibacter asiaticus Ca. Liberibacter americanus Ca. Liberibacter africanus Liberibacter
Abstract
O Huanglongbing (HLB) destaca-se como a doença mais significativa que afeta os cultivos de citros, sendo atribuível a três espécies distintas de α-proteobactérias do gênero Candidatus Liberibacter: Ca. Liberibacter asiaticus (CLas), Ca. Liberibacter americanus (CLam) e Ca. Liberibacter africanus (CLaf). No Brasil, o principal vetor para a transmissão de CLas é o psilídeo asiático dos citros, Diaphorina citri (Kuwayama) (Hemiptera: Liviidae). Este estudo tem como objetivo verificar a presença de

First Report of 'Candidatus Phytoplasma citri' related strain (16SrII-C subgroup) associated with phyllody disease of cumin in India

Citation
Kumar et al. (2024). Plant Disease
Names
Ca. Phytoplasma citri
Abstract
Cumin (Cuminum cyminum L.), is an important export-oriented seed spice crop for India. Cumin is popularly used for flavouring food, including soups, pickles and vegetables, and for herbal medicine. India is the largest producer, consumer and exporter of cumin seed with an annual production of 0.795 million tones over an area of 1.09 million hectares. During 2020-21, India exported about 0.299 million tons of cumin worth of Rs 33280 million (Anonymous, 2021). Recently, phytoplasma suspected symp

Molecular Characterization of ‘Candidatus Phytoplasma prunorum’ in the Czech Republic and Susceptibility of Apricot Rootstocks to the Two Most Abundant Haplotypes

Citation
Kiss et al. (2024). Microorganisms 12 (2)
Names
Ca. Phytoplasma prunorum
Abstract
‘Candidatus Phytoplasma prunorum’ is one of the most destructive pathogens of Prunus species, where susceptible species render unproductive several years after infection. In epidemiology, the molecular characterization of phytoplasmas is based on sequence analysis of variable nonribosomal genes. In this study aceF, pnp, imp and secY genes were used for characterization of the ‘Ca. P. prunorum’ genotypes present in the Czech Republic. In total, 56 plant and 33 vector (Cacopsylla pruni) samples po

Influence of ‘Candidatus Liberibacter solanacearum’ infection on carrot root weight in Germany

Citation
Sauer et al. (2024). European Journal of Plant Pathology
Names
“Liberibacter solanacearum”
Abstract
AbstractInfection with the bacterium ‘Candidatus Liberibacter solanacearum’ (Lso) is suspected to cause severe damage in carrot leading to high carrot weight loss. This study investigates three main aspects: (i) whether there is a reduction of carrot root weight under field conditions due to Lso infection; (ii) the correlation between Lso infection rate in carrot plants and occurrence of the psyllid Trioza apicalis as the known vector for Lso in carrot, and (iii) the comparison between symptoms