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“ “ Trichoderma Species Trichoderma Species ” ”

DEPARTMENT OF DESEASEJAWAHARLAL NEHRU KRISHI VISHWA VIDYALAYA,

JABALPUR, (M. P.)

Guided by : Presented by: Dr. D.S.Tomar Devendra Rajpoot

Roll No. 5756

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INTRODUCTION• Trichoderma is taken from thix-hair , derma-skin and the

genus was introduced by persoon.1794• Later fries and koning 1902.-made first report from soil

and first author named the type species Trichoderma koningii oud in the honour of junior author .

• Sometimes of use for controlling pathogenic fungi . • Trichoderma species can readily be isolated from soil either

through soil plate or soil dilution plate methods .• It can be grown on number of media.• Agar media is more effective and well suited to laboratery • Water and PDA are some of the media for cultivation and

maintenance of culltures.

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- Taxonomix description of trichoderma species - Trichoderma a hamatum .-- Colonies; - slow growing.- Chlamydospores=mostly globose to sub globose,smooth,7-12 um in diam.-Conidiophores= Highly remified from very compact tufy ,2-3 barrel shaped cell.- Phialides= Smooth , hyaline to pale greenish, short plump , pear shaped oviod.- Phialospores = Aggregate into slime , globose , conical , pale green , smooth .- Trichoderma harzianum Rifai.-Colonies= Growing rapidly , white green to bright green to dull green .- Mycelium ;- Septate ,colourlees , smooth ,1.5-2.5 um .- Chlamydospores = mostly globose , smooth , 6-12 um in diam .- Conidiophores = Loose tufy , main branch produced numerous side branches specially lower portion .-

(Linnaeus 1758)

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- Phialides ;= Arise flase varticellate upto five , short , skittle shapes narrow at the base .

- Phialospores = subglobose , short obovoid , smooth , pale green much darker in mass,2.8-2.5 um .

- Trichoderma koningii Oudem ;-- Colonies = fast growing , greenish white to dull to dark green .- Mycelium = hyaline , highly ramified ,2-5 um.- Chlamydospores = formed in submerged hyphae , globose upto

12 um in diam .- Conidiophores = much branched , compact or loose tufy ,in

group of 2-3 at wide angles .- Phialides = pin shaped ,7-2.5 um .- Phialospores =Elliptical ,oblong ,pale green ,3-2 um size .- Trichoderma piluliferum Rifai ;-- Colonies = slow growing , white mycelial over the surface .

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- Mycelium = smooth , colourless , upto 10um in diam .- Chlamydospores = highly ramified ,compact tufy , main

branches 5-7um diam ,thick .- Phialides = typically short , plump , 4-6um ,short flask shaped .- Phialospores = Produced singly and accumulate at the tip,

globose, to sub globose ,smooth ,colourless, 2-3um size .- Trichoderma polysporum ;-- Colonies = slow growing, watery white .- Mycelium = hylaline , smooth 2-3um .- Conidiophores = Irregular , close together, tufy long, - Phialides = short , plump , pear shaped ,conicol neck ,.- Phialospores = smooth , 2.8-1.8um .- -

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