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Exobasidium vexans Massee, Bulletin of Miscellaneous Informations of the Royal Botanical Gardens Kew () [MB#]. PDF | On Jan 1, , nghe and others published Morphological and Molecular Differences of Exobasidium vexans Massee. Blister blight (causal agent, Exobasidium vexans) is an economically devastating disease of tea (Camellia sinensis). To determine what.

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Finally the stem bends over and breaks off at the affected spot Petch, More Spanish version Dr. Tilletiopsis anamorph of Exobasidium vexans Massee.

This disease causes serious crop losses under inclement weather conditions besides affecting quality of made tea. Run Zhang 1 and Dr. In carefully collected material we have seen the mature two-celled basidiospores attached to sterigmata.

Specimen record 2. Chemical Control Due to the variable regulations around de- registration of pesticides, we are for the moment not including any specific chemical control recommendations.

These lesions give the lower surface of the leaf the characteristic blister like appearance. Lily Eurwilaichitr and Dr.

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It is replaced each time there is a query done. Removal of shade also helped to control the disease in Taiwan Liau, Vexanz of the British Mycological Society. If you would like to, you can learn more about the cookies we use. Other fungal links Bibliography links General links Molecular links Specimens and strains links. This page was last edited on 12 Decemberat Although the basidiospore is normally one-septate, as many as three septa have been seen in exobasixium spores.


Camellia blister blight (Exobasidium vexans ) on tea (Camellia sinensis ) –

Catalogue of Life CoL. From Wikipedia, the free encyclopedia. The fungus penetrates the tender stem and consequently the leaves and buds above the diseased part wither and necrotize.

Cookies on Plantwise Exboasidium Bank Like most websites we use cookies. It thrives in humid high elevations in Asia. Atmospheric spore concentrations are present throughout the year, but are lowest January through May when relative humidity and rainfall is decreased, and direct exobasodium duration is increased. During these months it has been found to produce abnormally thick walled spores, in addition to the usual basidiospores, that resist germination in vitro.

Mur et al The tea industry in southern India suffered enormous crop losses in the early years of blight Subba Rao, These cookies allow us to see information on user website activities including, but not limited to page views, source and time spent on a website.

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Close Find out more. Vexams new name species, genus, family, etc Register new type specimen of existing taxa epitype, neotype, etc. On the upper side of the leaf, the spots slowly become sunken into a shallow depression; at the same time on the under-side they become correspondingly convex, forming the typical blister lesion.

Exobasidium vexans exoasidium an obligate pathogen of tea, which makes the study of it difficult. Open the calendar popup. It thrives in tea growing regions of Asia with elevations over m and high relative humidity. Because the fungus infects the tender foliage that forms the harvest, direct crop losses can occur. The circular spots enlarge until they vrxans a diameter ranging from 3 to Exobasidium vexans Scientific classification Kingdom: Most browsers are initially set up to accept cookies, since this is required by most website owners in order to access their sites.


For practical reasons we have decided not to translate all pages in exlbasidium languages anymore because it was too heavy to maintain but some of the labels of the basic and advanced query pages are still available.

Encyclopedia of Life EOL. On the stem a pale yellow spot appears; this gradually elongates and encircles the whole stem which becomes slightly swollen at this point.

Fungal plant pathogens and diseases Tea diseases Ustilaginomycotina Fungi described vfxans Ustilaginomycotina stubs Plant disease stubs. They are sent to a computer by website operators or third parties.

Diseased leaves also affect the quality of finished tea if included in processing as several biochemical characteristics are changed resulting in reduced quality Baby vesans al. Application of diluted polyoxin, an antibiotic, has also had some success at control and inhibition of the disease. By using this site, you agree to the Terms of Use and Privacy Policy.