Group 16SrXI phytoplasma strains, including subgroup 16SrXI-B and a new subgroup, 16SrXI-D, are associated with sugar cane white leaf

Zhang, Rongyue; Li, Wenfeng; Huang, Ying-Kun; Wang, Xiaoyan; Shan, Hongli; Luo, Zhi-Ming; Yin, Jiong

doi:10.1099/ijsem.0.000712

Cited by 24 publications

(5 citation statements)

References 22 publications

(24 reference statements)

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“…Phytoplasmas have been found associated with hundreds of plant diseases (Bertaccini, 2007; Firrao, Garciachapa, & Marzachi, 2007; Maejima, Oshima, & Namba, 2014). Phytoplasmas of different subgroups infecting same plant species have been widely reported, for example the occurrence of 16SrXI‐B and ‐D on sugar cane (Zhang et al., 2016), or several subgroups of 16SrII infect cactus (Cai, Wei, Davis, Chen, & Zhao, 2008). Besides, mixed infection of different groups was observed as well.…”

Section: Discussionmentioning

confidence: 99%

Campsisgrandiflora as a new host species harbouring two novel 16SrI subgroups of phytoplasmas

Sun

Zhang

2020

Forest Pathology

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In September 2019, two diseased plants of Campsis grandiflora showing the main symptom of witches' ‐broom (CgWB) were found in a nursery garden in Yangling, Shaanxi province, China. Partial 16S ribosomal RNA (F2nR2 region) and ribosomal protein (rp) genes of phytoplasmas were generated from the symptomatic plants by PCR amplification, and phytoplasma bodies were observed in the sieve tube elements of the CgWB samples under a transmission electron microscope, indicating phytoplasma infection in the two CgWB plants. Restriction fragment length polymorphism analysis of the F2nR2 region and similarity coefficient results suggested that the two associated phytoplasmas belong to two novel subgroups of 16SrI (aster yellows) group, designated as AK and AL. On the reconstructed phylogenetic trees based on F2nR2 regions and rp genes of phytoplasmas, respectively, the CgWB‐associated phytoplasmas clustered together with members of 16SrI subgroups. This was the first record of phytoplasmas infecting C. grandiflora worldwide.

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Section: Discussionmentioning

confidence: 99%

Campsisgrandiflora as a new host species harbouring two novel 16SrI subgroups of phytoplasmas

Sun

Zhang

2020

Forest Pathology

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“…Che et al (2009) first discovered the existence of 16SrV phytoplasma in naturally infected periwinkle. Zhang et al (2016) analyzed SCWL phytoplasmas in Yunnan, which showed that SCWL is caused by phytoplasmas from group 16SrXI, including subgroup 16SrXI-B and a new subgroup, 16SrXI-D.…”

Section: Phytoplasma Diseases Distribution and Diversity Infecting Di...mentioning

confidence: 99%

The Diversity, Distribution and Status of Phytoplasma Diseases in China

Wang¹,

Zhang²,

Li³

et al. 2022

Front. Sustain. Food Syst.

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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. They are widely distributed in plants and insects, and can cause serious diseases in important food crops, vegetables, fruit trees, ornamental plants and trees, resulting in huge economic losses. To date, more than 100 phytoplasma diseases have been reported in China, which are distributed throughout the country. Jujube witches'-broom, paulownia witches'-broom, wheat blue dwarf, banana bunchy top, sugarcane white leaf, rice orange leaf and mulberry dwarf represent the phytoplasma diseases causing the most serious damage in China. New phytoplasma diseases and their strains are being reported continuously, indicating that phytoplasmas are more diverse than previously thought. Phytoplasmas are mainly transmitted by insect vectors, such as leafhopper and planthopper, and can also be spread by grafting or Cuscuta australis (known as dodder). Mixed infections of phytoplasmas and viruses, bacteria, and spiroplasmas have also become a serious problem in several crops and are responsible for more synergistic losses. With the continuous development and improvement of technology, molecular biological detection has become the main technique for phytoplasma detection and identification. Currently, research on phytoplasma diseases in China mainly focuses on pathogen identification and classification, and insect vector and host diversity; however, there is less focus on pathogenicity, comparative genomics, and effect factors. More research attention has been paid to wheat blue dwarf phytoplasma, paulownia witches'-broom phytoplasma, jujube witches'-broom phytoplasma, and sugarcane white leaf phytoplasma. Other phytoplasma diseases have been reported; however, there have been no in-depth studies. In this paper, the history and present situation of phytoplasma research, and the status, distribution, and diversity of phytoplasma diseases are summarized, and some possible research directions of phytoplasma in the future in China are proposed.

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“…This group has many subgroups. The rice yellow dwarf phytoplasma is in subgroup A (Jung et al 2003) while the sugarcane white leaf phytoplasma is in subgroups B and D (Zhang et al 2016). The leafhopper phytoplasma is in subgroups C and G (Trivellone et al 2022).…”

Section: Introductionmentioning

confidence: 99%

Multilocal Genotyping of Sugarcane White Leaf phytoplasma in Thailand.

Watcharachaiyakup,

Burns,

Chaphakdee

et al. 2023

Preprint

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Sugarcan white leaf (SCWL) phytoplasma is a pathogen associated with sugarcane white leaf, a severe disease causing yield losses in sugarcane plantations, particularly in Asian countries. In this study, 174 SCWL symptomatic sugarcane samples were collected from sugarcane growing areas in the North, Northeastern and Central plain of Thailand. The genotyping was performed using partial 16s rDNA and partial internal transcribed spacer and multilocus sequence typing (MLST) based on six genes including tuf, secY, leuS, secA, AAA1 and GroES. The analysis indicated that partial 16s rDNA and partial internal transcribed spacer and other six genes could divide SCWL phytoplasma within sugarcane samples into two groups: 16SrXI-B and 16SrXI-D. Sugarcane samples found throughout the country consisted of SCWL phytoplasma in 16SrXI-B group (85.6%) while 16SrXI-D group was only found in the Northeastern regions. It was either found with 16SrXI-B in Roi et, Kalasin and Mookdahan provinces or alone in Surin province. The outcome of MLST offered extensive diversity studies of SCWL phytoplasma in Thailand which further information for disease management, detection method development and monitoring.

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Group 16SrXI phytoplasma strains, including subgroup 16SrXI-B and a new subgroup, 16SrXI-D, are associated with sugar cane white leaf

Cited by 24 publications

References 22 publications

Campsisgrandiflora as a new host species harbouring two novel 16SrI subgroups of phytoplasmas

Campsisgrandiflora as a new host species harbouring two novel 16SrI subgroups of phytoplasmas

The Diversity, Distribution and Status of Phytoplasma Diseases in China

Multilocal Genotyping of Sugarcane White Leaf phytoplasma in Thailand.

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