Trichoderma theobromicola and T. paucisporum: two new species isolated from cacao in South America

Mycological Research
Gary J SamuelsHarry C Evans

Abstract

Trichoderma theobromicola and T. paucisporum spp. nov. are described. Trichoderma theobromicola was isolated as an endophyte from the trunk of a healthy cacao tree (Theobroma cacao, Malvaceae) in Amazonian Peru; it sporulates profusely on common mycological media. Trichoderma paucisporum is represented by two cultures that were obtained in Ecuador from cacao pods partially infected with frosty pod rot, Moniliophthora roreri; it sporulates sporadically and most cultures remain sterile on common media and autoclaved rice. It sporulates more reliably on synthetic low-nutrient agar (SNA) but produces few conidia. Trichoderma theobromicola was reintroduced into cacao seedlings through shoot inoculation and was recovered from stems but not from leaves, indicating that it is an endophytic species. Both produced a volatile/diffusable antibiotic that inhibited development of M. roreri in vitro and on-pod trials. Neither species demonstrated significant direct in vitro mycoparasitic activity against M. roreri.

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Citations

Jan 20, 2007·Antonie van Leeuwenhoek·Ze-Fen YuKe-Qin Zhang
Oct 24, 2008·Phytopathology·Harry C Evans
Oct 24, 2008·Phytopathology·Prakash K Hebbar
Mar 20, 2009·Canadian Journal of Microbiology·N Sadfi-ZouaouiM R Hermosa
Jun 21, 2014·Brazilian Journal of Microbiology : [publication of the Brazilian Society for Microbiology]·Xuping ShentuChuanxi Zhang
Sep 22, 2009·Mycological Research·Bryan A BaileyDelilah Wood
Nov 1, 2008·Molecular Ecology Resources·Gunhild HageskalIda Skaar
Oct 8, 2013·Evolution; International Journal of Organic Evolution·Priscila Chaverri, Gary J Samuels
Jun 7, 2014·Journal of Applied Microbiology·L L FalcäoL H Marcellino
Feb 18, 2014·Journal of Basic Microbiology·Judyta StrakowskaJerzy Chełkowski
Oct 15, 2009·Studies in Mycology·Walter M Jaklitsch
Feb 17, 2007·FEMS Microbiology Letters·Chu-Long ZhangIrina S Druzhinina
Jul 23, 2010·Mycologia·Gary J SamuelsOrlando Petrini
Jan 26, 2011·Mycologia·Gary J Samuels, Adnan Ismaiel
Jun 26, 2007·Chemistry & Biodiversity·Thomas DegenkolbHans Brückner
Nov 21, 2008·Molecular Plant Pathology·Lyndel W MeinhardtGonçalo A G Pereira
Sep 26, 2008·Chemistry & Biodiversity·Thomas Degenkolb, Hans Brückner
Sep 17, 2011·Nature Reviews. Microbiology·Irina S DruzhininaChristian P Kubicek

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