Comparison of the behaviour of a transformed hygromycin resistant strain of <i>Trichoderma atroviride</i> (M1057hygR) with the wildtype strain (M1057)


  • K.L. McLean
  • S.L. Dodd
  • B.E. Sleight
  • R.A. Hill
  • A. Stewart



The biocontrol isolate Trichoderma atroviride M1057 and a transformed hygromycin resistant biotype (M1057hygR) were compared using biological control rhizosphere competence and antibiosis studies to determine whether the transformed biotype performed in a similar manner to the wildtype strain In an onion growth chamber trial using soil naturally infested with the onion white rot pathogen Sclerotium cepivorum there was no significant difference (P>005) in the level of disease control given by the two T atroviride strains Similarly populations of T atroviride M1057 and M1057hygR were equivalent (P>005) in the rhizosphere of onion seedlings There was no significant difference (P>005) between the mycelial growth rates of S cepivorum when grown on agar amended with culture filtrate of T atroviride M1057 and M1057hygR Thus T atroviride M1057hygR has similar biological attributes to the wildtype isolate and can be used in future field studies looking at the population ecology of the biological control agent




How to Cite

McLean, K.L., S.L. Dodd, B.E. Sleight, R.A. Hill, and A. Stewart. “Comparison of the Behaviour of a Transformed Hygromycin Resistant Strain of &lt;i&gt;Trichoderma atroviride&lt;/i&Gt; (M1057hygR) With the Wildtype Strain (M1057)”. New Zealand Plant Protection 57 (August 1, 2004): 72–76. Accessed February 22, 2024.




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