Results 11 to 20 of about 50,569 (222)

Incidence, Molecular Detection, and Partial Nucleotide Sequencing of Some Viruses Causing Fig Mosaic Disease (FMD) on Fig Plants in Egypt

International Journal of Microbiology, 2022
Fig mosaic disease (FMD) is a viral disease that poses a significant danger to Egypt’s fig-producing economy. During the two growing seasons 2017 and 2018, fig leaves and fruits displaying a variety of symptoms linked with fig mosaic disease (FMD) were ...
Neven I. Toima, Om-Hashem M. El-Banna, Ali M. Sayed, Sahar A. Youssef, Ahmed A. Shalaby   +4 more
doaj   +1 more source

The Diversity, Distribution and Status of Phytoplasma Diseases in China

Frontiers in Sustainable Food Systems, 2022
Phytoplasmas are important prokaryotic pathogenic bacteria without cell walls, which were formerly known as mycoplasma-like organisms, and belong to the Mollicutes class, Candidatus Phytoplasma genus.
Xiao-Yan Wang, Rong-Yue Zhang, Jie Li, Yin-Hu Li, Hong-Li Shan, Wen-Feng Li, Ying-Kun Huang   +6 more
doaj   +1 more source

Molecular characterization and evolution of the resident population of some alfalfa mosaic virus (AMV) isolates in Egypt

BMC Microbiology, 2023
Background Alfalfa mosaic virus (AMV) is an important virus affecting many vegetable crops in Egypt. In this study, virus isolates were collected from naturally infected potato, tomato, alfalfa and clover plants that showed suspected symptoms of AMV in ...
Hala A. Amin, H. A. Younes, Radwa M. Shafie, Mervat M. Fathallah   +3 more
doaj   +1 more source

Isolation and characterization of three bacteriophages infecting Erwinia amylovora and their potential as biological control agent

Egyptian Journal of Biological Pest Control, 2023
Background Fire Blight, incited by Erwinia amylovora, is one of the most damaging pear and apple diseases in the world. Fire blight was introduced to Egypt in the 1960 and threatens the Egypt’s costs for pear industry.
Wessam Hassan, Osman Ahmed, Rasha E. Hassan, Sahar A. Youssef, A. A. Shalaby   +4 more
doaj   +1 more source

Effect of the entomopathogenic fungus, Beauveria bassiana inhibiting whitefly transmission of squash leaf curl virus infecting squash

Egyptian Journal of Biological Pest Control, 2023
Background Squash leaf curl virus (SLCV) is efficiently transmitted and spread by the whitefly, Bemisia tabaci (Gennadius), which is the only vector that transmits begomoviruses naturally causing huge crop losses through feeding damage.
Abeer Salah El-Deen Abd El-Wahab, Maha S. Nada, Manal A. El-Shazly, Azza Galal, Hala A. Amin   +4 more
doaj   +1 more source

A survey of ‘Candidatus Phytoplasma pyri’ isolates in the Czech Republic based on imp gene genotyping

Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 2022
‘Candidatus Phytoplasma spp.’ are pathogenic bacteria that infect many plant species. ‘Candidatus Phytoplasma pyri’, one of the members of the 16SrX group causes pear decline disease that adversely affects pear crops.
Lucie VALENTOVÁ, Markéta BOHUNICKÁ, Martina REJLOVÁ, Jana SUCHÁ, Tomáš NEČAS, Aleš EICHMEIER, Tomáš KISS, Jana CMEJLOVA, Radek CMEJLA   +8 more
doaj   +1 more source

Jujube witches' broom ('Zaofeng') disease: bacteria that drive the plants crazy

Fruit Research, 2023
Jujube witches' broom (JWB) disease, referred to as 'Zaofeng' disease in Chinese, is associated with the JWB phytoplasma ('Candidatus Phytoplasma ziziphi') and causes heavy losses in the jujube industry.
Sicheng Guo, Liyuan Gu, Yajie Zhang, Yingxia Wu, Bin Tan, Xianbo Zheng, Xia Ye, Jun Cheng, Wei Wang, Shuwen Bi, Zesen Qiao, Yujing Huang, Peng Chen, Jidong Li, Jiancan Feng   +14 more
doaj   +1 more source

Iodixanol density gradients as an effective phytoplasma enrichment approach to improve genome sequencing

Frontiers in Microbiology, 2022
Obtaining complete phytoplasma genomes is difficult due to the lack of a culture system for these bacteria. To improve genome assembly, a non-ionic, low- and iso-osmotic iodixanol (Optiprep™) density gradient centrifugation method was developed to enrich
Bianca Rodrigues Jardim, Bianca Rodrigues Jardim, Lucy T. T. Tran-Nguyen, Cherie Gambley, Brendan Rodoni, Brendan Rodoni, Fiona E. Constable, Fiona E. Constable   +7 more
doaj   +1 more source

Detection and molecular identification of a 16SrI group phytoplasma associated with sisal purple leafroll disease

Plant Protection Science, 2023
Sisal purple leafroll disease (SPLD) is a destructive disease affecting sisal in China, however, its etiology remains unknown. This disease is characterized by purple margins and rolling and yellowing of the leaves.
Guihua Wang, Weihuai Wu, Jingen Xi, Helong Chen, Chunping He, Ye Li, Jinlong Zheng, John S. Hu, Kexian Yi   +8 more
doaj   +1 more source

Detection, Identification and Molecular Characterization of the 16SrII-V Subgroup Phytoplasma Strain Associated with Pisum sativum and Parthenium hysterophorus L.

Plants, 2023
Two unrelated plant species, green pea and parthenium weed, harboring typical phytoplasma symptoms, were discovered in Yunlin, Taiwan. Green pea (Pisum sativum.) and parthenium weed (Parthenium hysterophorus L.) are both herbaceous annual plants ...
Yi-Ching Chiu, Pei-Qing Liao, Helen Mae Mejia, Ya-Chien Lee, Yuh-Kun Chen, Jun-Yi Yang   +5 more
doaj   +1 more source