First Report of ‘<i>Candidatus</i> Phytoplasma asteris’ Related Strain Associated with Sweet Cherry Fasciation Disease in China

Wang, J.; Ai, Chengxiang; Yu, Xianmei; Zhang, K. P.; Gao, Rui; Li, X. D.

doi:10.1094/pdis-06-17-0816-pdn

Cited by 5 publications

(3 citation statements)

References 5 publications

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“…Surveys on phytoplasma strains potentially infecting V. vinifera in China are mainly focused in Shandong, Shaanxi, Yunnan, and Shanxi, while some evidences about the pathogens are also retrieved from the other six provinces ( Figure 2 ). As shown in Figure 2 , evidences of AY (16SrI) phytoplasmas are the most common, which were repeatedly found in many areas of China (except for the northeast), for example, in Xinjang, Shanxi, and Shandong, where the pathogen was detected in wooded plants such as Prunus (Zhang et al, 2013a; Wang et al, 2018) or Citrus (Chen et al, 2009) and in economically important crops such as Triticum aestivum (Wu et al, 2010). EY phytoplasma-related strains were mainly identified in the east and north areas, such as in Shandong and Hebei, which harbor several plant hosts (Yu et al, 2012; Li et al, 2014).…”

Section: China and Taiwanmentioning

confidence: 99%

The Distribution of Phytoplasmas in South and East Asia: An Emerging Threat to Grapevine Cultivation

et al. 2019

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Grapevine is largely cultivated in several parts of the world, and a spurt in its cultivation has occurred in the last two decades in grapevine cultivated areas of South and East Asia, mainly in China, India, Japan, Korea, Thailand, and Indonesia. Grapevine yellows (GY) represent one of the most important diseases in viticultural areas of the world, and they have been assigned to five different groups: aster yellows [AY (16SrI)], peanut witches’ broom [PnWB (16SrII)], X-disease (16SrIII), elm yellows [EY (16SrV)], and Stolbur (16SrXII). This study provides a comprehensive overview of the presence of phytoplasma strains and their vectors associated with GY complex, and their potential impact on viticulture of the South and East Asia. In general, both AY and EY were reported on several herbaceous plants and/or cultivated plants in South and East Asia, along with its vectors that were largely reported in China and sporadically in Japan. Interestingly, AY and EY are yet not found in South and East Asia grapevine regions; however, their presence on different plant species suggests the potential spread of the pathogens that may occur in grapevine regions in the near future. Additionally, a few reports also suggest the presence of Stolbur group in Asian countries, along with one study that found a Stolbur-related strain in China on Vitis vinifera. Similarly, PnWB was also frequently reported in India and China on several plant species, but not in grapes. Conversely, sporadic detections of phytoplasma strains related to X-disease in Thailand, South Korea, and China indicate that their potential influence in viticulture is rather negligible. Our review suggests that monitoring and control strategies against GY are essential in order to prevent epidemic phytoplasma spread, especially in vine-allocated areas in Asia.

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Section: China and Taiwanmentioning

confidence: 99%

The Distribution of Phytoplasmas in South and East Asia: An Emerging Threat to Grapevine Cultivation

et al. 2019

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“…Flat stem often manifests as thickened and banded stems, disordered leaves, and abnormal in orescence development, affecting plants' normal growth and development. At present, the occurrence of at-stem disease has been reported in multiple countries and occurred on a variety of broad-leaved trees, including Sophora japonica (Liu et al 2022), Amorpha fruticose (Huang et al 2023), and Persimmon (Wang et al 2017), etc. It also affects herbaceous plants such as Corn (Duduk and Bertaccini 2006), Cucumber (Wang et al 2022), Arabidopsis thaliana (Bressan and Purcell 2005; Cettul and Firrao 2011), etc.…”

Section: Introductionmentioning

confidence: 99%

Unraveling the Molecular Mechanisms Underlying Flat Stem Formation in Atractylodes lancea in Response to Phytoplasmas

Gong,

Chen,

Huang

et al. 2024

Preprint

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Atractylodes lancea (Thunb.) DC has been widely used as a medicinal herb for centuries. However, long-term artificial cultivation of A. lancea led to serious plant diseases, such as the flat branch disease caused by phytoplasmas. To explore the formation mechanism of flat stems, we measured the changes in physiological and biochemical indicators and related metabolic pathways in stems of A. lancea in response to phytoplasma. After infection by pathogen, significant changes were observed in the content of stress compounds H2O2 and MDA, as well as the activities of antioxidant enzymes APX, POD, PPO, and CAT. The contents of jasmonic acid and zeatin in the flat stem (FS) of A. lancea increased significantly, while auxin content decreased. High-throughput sequencing showed that differentially expressed genes (DEGs) are enriched in hormone biosynthesis, signal transduction, Ca2+ signaling, and other pathways. These results preliminary elucidate the molecular mechanism of flat stem development in A. lancea, providing a foundation for disease prevention in the future.

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“…In 1971, cherry phytoplasma diseases were first reported by Granett and Gilme as the symptoms of cherry X disease [1]. The subgroup 16SrV-B of sweet cherry virescence disease and the subgroup 16SrI-B phytoplasma of sweet cherry fasciation disease have been reported in recent years [2][3][4]. However, cherry phytoplasma diseases are rarely reported in China.…”

Section: Introductionmentioning

confidence: 99%

Transcriptome Integrated with Metabolome Reveals the Molecular Mechanism of Phytoplasma Cherry Phyllody Disease on Stiff Fruit in Chinese Cherry (Cerasus pseudocerasus L.)

Chen

WeiXing

et al. 2021

Agriculture

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Phytoplasma-infected Chinese cherry (Cerasus pseudocerasus L.) exhibits symptoms of phyllody and stiff fruit. To reveal the molecular mechanism of stiff fruit, the current study integrated transcriptome with metabolome. Results showed that the differentially expressed genes and the differentially accumulated metabolites were related to a high proportion of two aspects: pathogen resistance and signaling or regulatory functions, and the molecular mechanism of stiff fruit that were majorly induced by plant biotic stress response via phytohormones signal transduction, especially signal pathways of salicylic acid, auxin, and abscisic acid. Notably, there was a large overlap between phytoplasma stress response and drought stress response genes. Phytohormone content displayed significant difference that abscisic acid and salicylic acid content of phytoplasma-infected fruit were higher than that of healthy fruit, whereas zeatin, jasmonic acid, and IAA showed the opposite results. In addition, the expression of key candidate genes, including IAA4, IAA9, IAA14, IAA31, ARF5, ARF9, GH3.1, GH3.17, SAUR20, SAUR32, SAUR40, PR1a, PRB1, TGA10, SnRK2.3, and AHK2, was responsible for cherry stiff fruit. In conclusion, the current study contributed a foundation for understanding the molecular mechanism of cherry phyllody disease on stiff fruit, a better understanding of fruit development, and found the potential candidate genes involved in cherry stiff fruit, which could be used for further research in associated fields.

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First Report of ‘Candidatus Phytoplasma asteris’ Related Strain Associated with Sweet Cherry Fasciation Disease in China

Cited by 5 publications

References 5 publications

The Distribution of Phytoplasmas in South and East Asia: An Emerging Threat to Grapevine Cultivation

The Distribution of Phytoplasmas in South and East Asia: An Emerging Threat to Grapevine Cultivation

Unraveling the Molecular Mechanisms Underlying Flat Stem Formation in Atractylodes lancea in Response to Phytoplasmas

Transcriptome Integrated with Metabolome Reveals the Molecular Mechanism of Phytoplasma Cherry Phyllody Disease on Stiff Fruit in Chinese Cherry (Cerasus pseudocerasus L.)

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