Trichoderma harzianum  Rifai, 1969

GenBank Accession No. JX518897

Serial No. 27

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Taxonomy

Kingdom : Fungi

  Division : Ascomycota

    Subdivision : Pezizomycotina

      Class : Sordariomycetes

        Subclass : Hypocreomycetidae

          Order : Hypocreales

            Family : Hypocreaceae

              Genus : Trichoderma

                Species : harzianum

                  Binomial Name : Trichoderma harzianum

                    Author : Rifai, 1969

Synonyms :
Sporotrichum narcissi
T. lignorum var. narcissi
T. narcissi
Trichoderma numbergie
(Svilvinyi, 1932)

Telomorph :
Hypocrea lixii Patouillard 1891, Hypocrea lentiformis Rehm Hedwigia

Morphological characteristics
Colony colour : White in initial stage and further become dark green in nature
Colony characteristics : Grew slowly comparing to other Trichoderma species reaching up to 6 cm after 4 days incubation.
Colony radius : 51 - 57mm
Colony on PDA :Not conspicuous; diffusing pigment on agar in some strains and in various colors
Hyphae : Cottony white
Mycelia :First smooth, watery white in colour, sparse, until floccose aerial mycelium will produced
Pigments : Often with yellow pigment diffusing in medium
Odour : No distinct odor detected
Microscopic characteristics
Conidiophore : Pyramidal; short vertical intervals, short base of secondary branch
Phialides : Ampulliform to flask-shaped, 4.8-8.5 χ 2.5-3.5 μm
Conidia : Globose, subglobose, no scar, 2.7-3.5 χ 2.5-3, L/W 1-1.5
Chlamydospores : Produced in old cultures (> 2 weaks), globose to subglobose, terminal or intercalary
Stromata : 1.0-1.5 mm diameter, surface smooth, solitary or aggregated, pulvinate, nearly circular in outline
Ascospores : Distal part 4.3-4.4 χ 3.9 χ 4.0 μm, green in colour, dimorphic, green, warted, distal part globose to subglobose
General characteristics
Main cell wall composition : Glucans, glycoprotien, chitin
Type of reproduction : Asexual (Herman et al. 2004).
Growth rate : 41-72 mm after 72 hrs; growth at 250C after 72 hrs 33-72+ mm; good growth at 350C
Economic importance : Biological control against plant pathogens
Optimum temp. for growth rate : 300C optimum
Optimum pH : 7.00-8.00 (HasanZadeh et al. 2012).
Biochemical characteristics
Metabolite production : Peptaibols, anthraquinones, harzianolide, harzianopyridone
Enzymatic production : Chitinases, β-1,3-glucanase, β-1,6-glucanase

Morphology Conodiophore Spore

District : Thoubal

Topography : Valley

Latitude : 24032'8.7''N

Longitude : 93056'16.9''E

Altitude (M) : 760

  • Wikipedia, the free Encyclopedia
  • Chaveri P. et al. Mycologia  2011 103 (1): 139-151
  • Kubicek CP et al. Journal of Zhejiang University science B 2008 9 (10): 753-763
  • Chaveri P and Smuels GJ http://ww.fungalbiod
  • Mohamed S et al. Archives of Microbiology 1982 133: 330-331.



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