Trichoderma theobromicola and T. paucisporum: two new species isolated from cacao in South America
| Autor: | Adnan Ismaiel, Carmen Suarez, Karina Solis, Harry C. Evans, K. A. Holmes, Sarah E. Thomas, Gary J. Samuels |
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| Rok vydání: | 2006 |
| Předmět: |
Phytophthora
Theobroma Molecular Sequence Data Moniliophthora roreri Plant Science Endophyte Conidium DNA Ribosomal Spacer Botany Genetics Microscopy Interference Microscopy Phase-Contrast DNA Fungal Phylogeny Ecology Evolution Behavior and Systematics Malvaceae Plant Diseases Trichoderma Cacao Base Sequence biology food and beverages Sequence Analysis DNA Classification biology.organism_classification Trichoderma theobromicola Trichoderma paucisporum Cacao tree Microscopy Fluorescence Sequence Alignment Biotechnology |
| Zdroj: | Mycological Research. 110:381-392 |
| ISSN: | 0953-7562 |
| DOI: | 10.1016/j.mycres.2006.01.009 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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