Trichoderma asperellum  Samuels, Lieck and Nirenberg, 1999

GenBank Accession No. JX518901

Serial No. 6

  • Basic info
  • Photograph
  • Collection Site
  • Reference
  • Primer Pick
  • In silico digetion
Taxonomy

Kingdom : Fungi

  Division : Ascomycota

    Subdivision : Pezizomycotina

      Class : Sordariomycetes

        Subclass : Hypocreomycetidae

          Order : Hypocreales

            Family : Hypocreaceae

              Genus : Trichoderma

                Species : asperellum

                  Binomial Name : Trichoderma asperellum

                    Author : Samuels, Lieck and Nirenberg, 1999

Synonyms :
Not available

Telomorph :
Hypocrea asperella Starback, 1899

Morphological characteristics
Colony colour : Translucent or watery white
Colony characteristics : Grew moderately rapidly, reaching up to 5 cm in diameter after 3 days incubation.
Colony radius : 31-43mm
Colony on PDA :54 mm at 300C, 27 mm at 350C and 0 mm at 400C, forming upto 5 concentric rings of dense conidial production
Hyphae : In the form of lawn
Mycelia :Sparse and grew close to the agar, aerial mycelium lacking
Pigments : No yellow pigment diffusing through the agar at any temp.
Odour : No odour
Microscopic characteristics
Conidiophore : Regularly branched; branches typically paired
Phialides : Straight; L/W ratio, 2:4
Conidia : Grass green to dark green, cushion shaped tufts, Conidia subglobose or ovoidal, finely spinulose, L/W 1.0 - 1.7
Chlamydospores : Abundant within one week on CMD grown at 200C in darkness, terminal or infrequently intercalary, on immersed hyphae, subglobose to ovoidal, smooth, pale green, (4.5-)7.7-11.7(-15) μm diam.
Stromata : None known
Ascospores : None known.
General characteristics
Main cell wall composition : Glucans, glycoprotien, chitin
Type of reproduction : Asexual (Herman et al. 2004).
Growth rate : After 72 hrs. on PDA at 300C: (7-)54(-64)mm
Economic importance : Biological control against plant pathogens
Optimum temp. for growth rate : 300C
Optimum pH : 4.00 (Kredics et al. 2003)
Biochemical characteristics
Metabolite production : Trichotoxin Peptaibols (Chutrakul et al., 2008)
Enzymatic production : Glucanase

Morphology Conodiophore Spore

District : Churachandpur

Topography : Slope

Latitude : 24016'55.4''N

Longitude : 93041'03.0''E

Altitude (M) : 842

  • Samuals et al. Mycological Research 2006 110: 381-392.
  • Lickfeldt E. et al. Appl environ Microbiol. 1999 65 (6): 2418-2828
  • Chutrakul, C et al. Chemistry and Biodiversity 2008. 5: 1694-1705
  • Sharma P. et al. African journal of Biotechnology. 2011. 10 (86):19898-19907
  • Bourguignon E, Ph. D Thesis 2008.
  • http://nt.ars-grin.gov/taxadescriptions/keys/FrameListAllTaxa.cfm?gen=Trichoderma
  • Mohamed S et al. Archives of Microbiology 1982 133: 330-331.



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