Increasing incidence of tomato big bud phytoplasma in Ranga Reddy District of Telangana State, India

Madhupriya,; Kumari, D. Anitha; Vennila, D. S.; Bhat, M. Narayana; Rao, G. P.

doi:10.1007/s42360-018-0033-z

Cited by 5 publications

(2 citation statements)

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“…The big bud disease of tomatoes has different names in various countries and it is typically associated with diverse phytoplasmas. It was reported from western Uttar Pradesh and later detected in many other Indian states (Singh et al, 2012; Kumari et al, 2018) and in northern Australia (Davis et al, 1997). In some European countries this disease is reported as associated with the presence of ribosomal groups including 16SrI, 16SrIII, 16SrV, and 16SrXII (Del Serrone et al, 2001; Vellios and Lioliopoulou, 2007) while in Africa only the latter two groups were identified (Gungoosingh-Bunwaree et al, 2013).…”

Section: Phytoplasma Diseases In Vegetable Speciesmentioning

confidence: 82%

“…For instance, phytoplasmas in the 16SrIII group are reported to induce symptoms of little leaf, stunting and witches’ broom in different vegetable crops including cabbage, chili, squash, potato, tomato, and bitter gourd. On the other hand, big bud disease of tomato could be associated with different phytoplasma groups in different geographical areas such as aster yellows (16SrI) in Iran, peanut witches’ broom (16SrII) in China and India, elm yellows (16SrV) in Mauritius, clover proliferation (16SrVI) in United States and “stolbur” (16SrXII) in Russia (Gungoosingh-Bunwaree et al, 2007; Ember et al, 2011; Xu et al, 2013; Sichani et al, 2014; Kumari et al, 2018). Furthermore, several studies reported two or more distinct phytoplasma group infections in a single plant.…”

Section: Symptomatologymentioning

confidence: 99%

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Global Status of Phytoplasma Diseases in Vegetable Crops

et al. 2019

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The presence of phytoplasmas and their associated diseases is an emerging threat to vegetable production which leads to severe yield losses worldwide. Phytoplasmas are phloem-limited pleomorphic bacteria lacking the cell wall, mainly transmitted through leafhoppers but also by plant propagation materials and seeds. Phytoplasma diseases of vegetable crops are characterized by symptoms such as little leaves, phyllody, flower virescence, big buds, and witches’ brooms. Phytoplasmas enclosed in at least sixteen different ribosomal groups infecting vegetable crops have been reported thus far across the world. The aster yellows phytoplasma group (16SrI) is presently the prevalent, followed by the peanut witches’ broom (16SrII). Wide and overlapping crop and non-crop host ranges of phytoplasmas, polyphagous insect vectors, limited availability of resistance sources and unavailability of environmentally safe chemical control measures lead to an arduous effort in the management of these diseases. The most feasible control of vegetable phytoplasma diseases is a consequence of the development and implementation of integrated disease management programs. The availability of molecular tools for phytoplasma identification at the strain level greatly facilitated this kind of approach. It is moreover essential to understand the molecular basis of phytoplasma-vector interaction, epidemiology and other factors involved in disease development in order to reduce the disease outbreaks. Information on the knowledge about the most widespread phytoplasma diseases in vegetable crops is reviewed here in a comprehensive manner.

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