Preliminary Study On Taxonomy,Ecology And Biology Of Coccomyces (Rhytismatales) In Southern China

Members of Coccomyces which collected from southern China and specimens of Coccomyces occurring on broad-leaved trees which were deposited in AAUF(the Reference Collection of Forest Fungi of Anhui Agricultural University,China)were detaliedly studied with the most advanced poly-character integrated taxonomy method.These specimens were scientific classified,identified and complementally studied based on Daker(1967),Cannon & Minter(1983,1986),Johnston(1986),Spooner(1991),Kirk et al.(2001,2008),who proposed the taxonomic point of view,through their different geographical distribution,ecological environment,morphology and anatomy,as well as other culture observation.Specimens of Coccomyces from southern China is now identified eight genus,namely C.prominens,C.hainanensis,C.keteleeriae,C.crateriformis,C.sinensis,C.occultus,C.radiatus,C.delta.Among the taxa above,C.prominens and C.hainanensis are new fungi and Chinese and English morphological features,Chinese comments,iconographies of asci,paraphyses,ascospore and conidioma,while recording their hosts,distribution,habitat and yield and other information,and be discussed.Finally,two kinds of retrieval table fork points of the South China were established with a clear distinction between the various district.Coccomyces widely distributed in the southern region,especially in such a hot and rainy evergreen tropical-subtropical areas.A large number of National Plant Nature Reserves in southern China and the protection of vegetation and tree are particularly important.Members of Coccomyces preferences grow in heat,moisture major environment,and most members are numerous trees pathogen to the plant causing the leaves,dry spot,wilt and other diseases,having seriously affected the normal growth of plants in the region and its economic value,causing serious economic losses.The study of Coccomyces and field visit its geographical distribution,altitude slope,climate,host of ecological and other factors will provide a basis for reference for vegetation protection in the southern region and has some theoretical value.At the same time,the author isolated and purified some fungi of Coccomyces which were collected from the south China for comparing their cultural characteristics.Growth rate,shape,color,secretions and other traits were recorded detailed in regularly inoculated on MA,OA,PDA three different colonies growing medium and take clear photos colony morphology.The results showed that different culture traits with adifferent host on the same place,the same kind of culture traits is different in different locations on the same host and the same host with different traits showed in different culture medium through the comparative study of these different traits.The culture characters of Coccomyces also showed some similarities,such as the secretion of water-soluble pigments in different colors on a different medium,the late growth of conidiomata on the OA media,and produce black shell,etc.which has a supporting role to some extent in classification.