Biogeography and phenotypic variation in Trichoderma sect. Longibrachiatum and associated Hypocrea species

Turner, Doris; Kovacs, Werner J.; Kuhls, Katrin; Lieckfeldt, Elke; Peter, Barbara; Arisan-Atac, Inci; Strauss, Joseph; Samuels, Gary J.; Börner, Thomas; Kubicek, Christian P.

doi:10.1017/s0953756296002845

Cited by 87 publications

(64 citation statements)

References 30 publications

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“…sects. Longibrachiatum and Saturnisporum (Kuhls et al, 1996Turner et al, 1997). While these analyses largely confirmed the morphologically based species definitions accepted by Bissett (1984Bissett ( , 1991a, the rDNA sequence information provided support for merging the two sections.…”

supporting

confidence: 55%

“…Whole-cell DNA was isolated from fresh mycelium as described previously (Turner et al, 1997). A nuclear rDNA region, containing the internal transcribed spacer regions and the 5.8S rRNA gene were amplified by PCR using the primer combinations ITS1 and ITS4 in 100-µl vol (White et al, 1990), using an automated temperature cycling device (Biotron, Biometra, Gö ttingen, FRG) and the following parameters: 2 min initial denaturation at 95°C, followed by 30 cycles of 1 min primer annealing at 50-55°C, 45 s extension at 72°C, 1 min denaturation at 95°C, and a final extension period of 10 min at 72°C.…”

Section: Dna Extraction and Polymerase Reaction Amplification Of Ribomentioning

confidence: 99%

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Phylogeny of the GenusTrichodermaBased on Sequence Analysis of the Internal Transcribed Spacer Region 1 of the rDNA Cluster

Kindermann

El-Ayouti

Samuels

et al. 1998

Fungal Genetics and Biology

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134

101

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supporting

confidence: 55%

Section: Dna Extraction and Polymerase Reaction Amplification Of Ribomentioning

confidence: 99%

Phylogeny of the GenusTrichodermaBased on Sequence Analysis of the Internal Transcribed Spacer Region 1 of the rDNA Cluster

Kindermann

El-Ayouti

Samuels

et al. 1998

Fungal Genetics and Biology

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134

101

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“…While these studies revealed the worldwide predominance of some species such as T. harzianum, they also revealed a putative geographic bias for a number of other taxa. This is best exemplified in a summary of the geographic occurrence of species from section Longibrachiatum (Table 1), of which, only T. longibrachiatum, H. orientalis, and T. ghanense appear to Turner et al(1997), Kullnig et al(2000), Kubicek et al(2003), Druzhinina et al(2005), Zhang et al(2005), and unpublished work in our own laboratory fulfil the criterion of a pangaean distribution, although the latter two are more frequent in warmer and tropical areas. H. schweinitzii/T.…”

Section: Geographic Distribution Of Hypocrea/ Trichodermamentioning

confidence: 90%

Fungal genus Hypocrea/Trichoderma: from barcodes to biodiversity

Kubicek

Komoń-Zelazowska

Druzhinina

2008

J. Zhejiang Univ. Sci. B

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113

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Abstract:Hypocrea/Trichoderma is a genus of soil-borne or wood-decaying fungi containing members important to mankind as producers of industrial enzymes and biocontrol agents against plant pathogens, but also as opportunistic pathogens of immunocompromised humans and animals, while others can cause damage to cultivated mushroom. With the recent advent of a reliable, BarCode-aided identification system for all known taxa of Trichoderma and Hypocrea, it became now possible to study some of the biological fundamentals of the diversity in this fungal genus in more detail. In this article, we will therefore review recent progress in (1) the understanding of the geographic distribution of individual taxa; (2) mechanisms of speciation leading to development of mushroom diseases and facultative human mycoses; and (3) the possible correlation of specific traits of secondary metabolism and molecular phylogeny.

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“…The used bioagents were isolated on selected medium according to the methods recommended by Turner et al (1998). The isolated antagonists were purified by using single spores and/or single they are insufficient under high disease pressure, especially when weather conditions are particularly conductive to disease development (Khalil, 2007).…”

Section: Isolation Purification and Identification Of Antagonistic Omentioning

confidence: 99%

Integrated Management of Damping-off, Root and/or Stem Rot Diseases of Chickpea and Efficacy of the Suggested Formula

Abdel-Monaim

2011

Not Sci Biol

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Eleven fungal isolates were isolated from naturally infected chickpea roots collected from different locations in New Valley Governorate (Egypt). The isolated fungi were purified and identified as Rhizoctonia solani (5 isolates), Fusarium solani (4 isolates) and Sclerotinia sclerotiorum (2 isolates). The isolated fungi proved their pathogenicity on cv. 'Giza 3' . Response of chickpea cvs. 'Giza 1' , 'Giza 2' , 'Giza 3' , 'Giza 4' , 'Giza 88' , 'Giza 195' , 'Giza 531' to infection by the tested fungi was significantly varied. 'Giza 1' was the most resistant one followed by 'Giza 531' , while the other tested cvs. were highly susceptible. Seven biocontrol agents, namely Bacillus subtilis, B. megaterium, B. cereus, Trichoderma viride, T. harzianum, Aspergillus sp., Penicillium sp. isolated from chickpea rhizosphere, were tested for their antagonistic action against the tested pathogens. B. subtilis isolate BSM1, B. megaterium isolate TVM5, T. viride isolate TVM2 and T. harzianum isolate THM4 were the most antagonistic ones to the tested fungi in vitro, while the other isolates were moderate or weak antagonists. The most antagonistic isolates as well as the commercial biocide Rhizo-N were applied as seed treatment for controlling damping-off, root and/or stem rot diseases caused by the tested fungi under greenhouse conditions. The obtained data showed that all tested antagonistic isolates were able to cause significant reduction of damping-off, root and/or stem rot diseases in chickpea plants. T. viride (isolate TVM2) and B. megaterium (isolate BMM5) proved to be the most effective isolates for controlling the diseases. Under field condition, the obtained data indicated that all the tested antagonistic isolates significantly reduced dampingoff, root and/or stem rot. T. viride (isolate TVM2) and B. megaterium (isolate BMM5) recorded the highest reduction of damping-off, root and/or stem rot in all sowing dates. Sowing of treated seeds with bioagents in first of November gave the highest protection against root diseases in chickpea. The reduction in damping-off, root and/or stem rot severity was significantly reflected on the produced seed yield. In this respect, seeds previously treated with T. viride (TVM2) produced the highest seed yield in all sowing dates followed by seed treated with B. megaterium (TVM5). First of November was the best sowing date to reduce these diseases and to increase seed yield/fed. On the other hand, the antagonistic isolates isolated from chickpea rhizosphere, were most active than the commercial biocide Rhizo-N in reducing chickpea root diseases and increase of seed yield in greenhouse and field conditions.

show abstract

Biogeography and phenotypic variation in Trichoderma sect. Longibrachiatum and associated Hypocrea species

Cited by 87 publications

References 30 publications

Phylogeny of the GenusTrichodermaBased on Sequence Analysis of the Internal Transcribed Spacer Region 1 of the rDNA Cluster

Phylogeny of the GenusTrichodermaBased on Sequence Analysis of the Internal Transcribed Spacer Region 1 of the rDNA Cluster

Fungal genus Hypocrea/Trichoderma: from barcodes to biodiversity

Integrated Management of Damping-off, Root and/or Stem Rot Diseases of Chickpea and Efficacy of the Suggested Formula

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