Efficacy of Trichoderma asperellum oil formulations on the control of cocoa black pod disease (Phytophthora megakarya).
Identifieur interne : 001546 ( Main/Exploration ); précédent : 001545; suivant : 001547Efficacy of Trichoderma asperellum oil formulations on the control of cocoa black pod disease (Phytophthora megakarya).
Auteurs : J B Mbarga [Cameroun] ; G Martijn Ten Hoopen ; A D Begoude ; P R Tondje ; J. Kuate ; Z. Ambang ; A. Amougou ; B. SchiffersSource :
- Communications in agricultural and applied biological sciences [ 1379-1176 ] ; 2012.
Descripteurs français
- KwdFr :
- Cacaoyer (MeSH), Huile d'arachide (MeSH), Huile de palme (MeSH), Huiles végétales (composition chimique), Huiles végétales (pharmacologie), Maladies des plantes (microbiologie), Maladies des plantes (prévention et contrôle), Phytophthora (effets des médicaments et des substances chimiques), Spores fongiques (composition chimique), Trichoderma (classification), Trichoderma (composition chimique).
- MESH :
- composition chimique : Huiles végétales, Spores fongiques, Trichoderma.
- effets des médicaments et des substances chimiques : Phytophthora.
- microbiologie : Maladies des plantes.
- pharmacologie : Huiles végétales.
- prévention et contrôle : Maladies des plantes.
- Cacaoyer, Huile d'arachide, Huile de palme.
English descriptors
- KwdEn :
- MESH :
- chemical , chemistry : Plant Oils.
- chemical , pharmacology : Plant Oils.
- chemical : Palm Oil, Peanut Oil.
- chemistry : Spores, Fungal, Trichoderma.
- classification : Trichoderma.
- drug effects : Phytophthora.
- microbiology : Plant Diseases.
- prevention & control : Plant Diseases.
- Cacao.
Abstract
The objective of this study was therefore to develop a formulation of conidia of T. asperellum with the aim of improving its efficacy. The formulations developed were oily dispersions. It was a combination of solvents consisting of groundnut oil or palm oil with structural agents and emulsifying-dispersing agents. Emulsification tests were carried out and the stability of the emulsions evaluated. The evaluation of the effect of co-formulants on the growth of conidia of T. asperellum was done by reading the optical densities of the formulated samples on multi-plates using a plate reader. The test on detached cocoa pods was done by treating the cocoa pods with selected formulations at 1.10(7) conidia/ml and inoculation of the treated cocoa pods was done 24 hours later with zoospores of P. megakarya at 1.10(5) zoospores/ml. The growth of necrosis on the fruits was measured daily. The screening of co-formulants and emulsification tests ended up with the selection of two formulations. The first composed of conidia of T. asperellum, groundnut oil, Tensiofix NTM and Tensiofix 869. The second differed from the first by utilisation of palm oil as the solvent. These formulations proved stable when diluted in water with 1% and 0.5% of sedimentation respectively after 24 hours. The viability test of the conidia indicated that the different formulations selected did not have a fungitoxic effect. The test on detached cocoa pods showed an improved efficacy of T. asperellum to control the disease. The growth rates of necrosis were 6.29 mm/day, 7.25 mm/day and 31.6 mm/day for treatment with formulation 1, pure conidia and control treated with water respectively.
PubMed: 23878961
Affiliations:
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Kuate</name></author><author><name sortKey="Ambang, Z" sort="Ambang, Z" uniqKey="Ambang Z" first="Z" last="Ambang">Z. Ambang</name></author><author><name sortKey="Amougou, A" sort="Amougou, A" uniqKey="Amougou A" first="A" last="Amougou">A. Amougou</name></author><author><name sortKey="Schiffers, B" sort="Schiffers, B" uniqKey="Schiffers B" first="B" last="Schiffers">B. Schiffers</name></author></analytic><series><title level="j">Communications in agricultural and applied biological sciences</title><idno type="ISSN">1379-1176</idno><imprint><date when="2012" type="published">2012</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Cacao (MeSH)</term><term>Palm Oil (MeSH)</term><term>Peanut Oil (MeSH)</term><term>Phytophthora (drug effects)</term><term>Plant Diseases (microbiology)</term><term>Plant Diseases (prevention & control)</term><term>Plant Oils (chemistry)</term><term>Plant Oils (pharmacology)</term><term>Spores, Fungal (chemistry)</term><term>Trichoderma (chemistry)</term><term>Trichoderma (classification)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Cacaoyer (MeSH)</term><term>Huile d'arachide (MeSH)</term><term>Huile de palme (MeSH)</term><term>Huiles végétales (composition chimique)</term><term>Huiles végétales (pharmacologie)</term><term>Maladies des plantes (microbiologie)</term><term>Maladies des plantes (prévention et contrôle)</term><term>Phytophthora (effets des médicaments et des substances chimiques)</term><term>Spores fongiques (composition chimique)</term><term>Trichoderma (classification)</term><term>Trichoderma (composition chimique)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Plant Oils</term></keywords><keywords scheme="MESH" type="chemical" qualifier="pharmacology" xml:lang="en"><term>Plant Oils</term></keywords><keywords scheme="MESH" type="chemical" xml:lang="en"><term>Palm Oil</term><term>Peanut Oil</term></keywords><keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Spores, Fungal</term><term>Trichoderma</term></keywords><keywords scheme="MESH" qualifier="classification" xml:lang="en"><term>Trichoderma</term></keywords><keywords scheme="MESH" qualifier="composition chimique" xml:lang="fr"><term>Huiles végétales</term><term>Spores fongiques</term><term>Trichoderma</term></keywords><keywords scheme="MESH" qualifier="drug effects" xml:lang="en"><term>Phytophthora</term></keywords><keywords scheme="MESH" qualifier="effets des médicaments et des substances chimiques" xml:lang="fr"><term>Phytophthora</term></keywords><keywords scheme="MESH" qualifier="microbiologie" xml:lang="fr"><term>Maladies des plantes</term></keywords><keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Plant Diseases</term></keywords><keywords scheme="MESH" qualifier="pharmacologie" xml:lang="fr"><term>Huiles végétales</term></keywords><keywords scheme="MESH" qualifier="prevention & control" xml:lang="en"><term>Plant Diseases</term></keywords><keywords scheme="MESH" qualifier="prévention et contrôle" xml:lang="fr"><term>Maladies des plantes</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Cacao</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Cacaoyer</term><term>Huile d'arachide</term><term>Huile de palme</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The objective of this study was therefore to develop a formulation of conidia of T. asperellum with the aim of improving its efficacy. The formulations developed were oily dispersions. It was a combination of solvents consisting of groundnut oil or palm oil with structural agents and emulsifying-dispersing agents. Emulsification tests were carried out and the stability of the emulsions evaluated. The evaluation of the effect of co-formulants on the growth of conidia of T. asperellum was done by reading the optical densities of the formulated samples on multi-plates using a plate reader. The test on detached cocoa pods was done by treating the cocoa pods with selected formulations at 1.10(7) conidia/ml and inoculation of the treated cocoa pods was done 24 hours later with zoospores of P. megakarya at 1.10(5) zoospores/ml. The growth of necrosis on the fruits was measured daily. The screening of co-formulants and emulsification tests ended up with the selection of two formulations. The first composed of conidia of T. asperellum, groundnut oil, Tensiofix NTM and Tensiofix 869. The second differed from the first by utilisation of palm oil as the solvent. These formulations proved stable when diluted in water with 1% and 0.5% of sedimentation respectively after 24 hours. The viability test of the conidia indicated that the different formulations selected did not have a fungitoxic effect. The test on detached cocoa pods showed an improved efficacy of T. asperellum to control the disease. The growth rates of necrosis were 6.29 mm/day, 7.25 mm/day and 31.6 mm/day for treatment with formulation 1, pure conidia and control treated with water respectively.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">23878961</PMID><DateCompleted><Year>2013</Year><Month>08</Month><Day>23</Day></DateCompleted><DateRevised><Year>2017</Year><Month>11</Month><Day>16</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">1379-1176</ISSN><JournalIssue CitedMedium="Print"><Volume>77</Volume><Issue>3</Issue><PubDate><Year>2012</Year></PubDate></JournalIssue><Title>Communications in agricultural and applied biological sciences</Title><ISOAbbreviation>Commun Agric Appl Biol Sci</ISOAbbreviation></Journal><ArticleTitle>Efficacy of Trichoderma asperellum oil formulations on the control of cocoa black pod disease (Phytophthora megakarya).</ArticleTitle><Pagination><MedlinePgn>65-73</MedlinePgn></Pagination><Abstract><AbstractText>The objective of this study was therefore to develop a formulation of conidia of T. asperellum with the aim of improving its efficacy. The formulations developed were oily dispersions. It was a combination of solvents consisting of groundnut oil or palm oil with structural agents and emulsifying-dispersing agents. Emulsification tests were carried out and the stability of the emulsions evaluated. The evaluation of the effect of co-formulants on the growth of conidia of T. asperellum was done by reading the optical densities of the formulated samples on multi-plates using a plate reader. The test on detached cocoa pods was done by treating the cocoa pods with selected formulations at 1.10(7) conidia/ml and inoculation of the treated cocoa pods was done 24 hours later with zoospores of P. megakarya at 1.10(5) zoospores/ml. The growth of necrosis on the fruits was measured daily. The screening of co-formulants and emulsification tests ended up with the selection of two formulations. The first composed of conidia of T. asperellum, groundnut oil, Tensiofix NTM and Tensiofix 869. The second differed from the first by utilisation of palm oil as the solvent. These formulations proved stable when diluted in water with 1% and 0.5% of sedimentation respectively after 24 hours. The viability test of the conidia indicated that the different formulations selected did not have a fungitoxic effect. The test on detached cocoa pods showed an improved efficacy of T. asperellum to control the disease. The growth rates of necrosis were 6.29 mm/day, 7.25 mm/day and 31.6 mm/day for treatment with formulation 1, pure conidia and control treated with water respectively.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Mbarga</LastName><ForeName>J B</ForeName><Initials>JB</Initials><AffiliationInfo><Affiliation>Laboratoire Régional de Lutte Biologique et de Microbiologie Appliquée, IRAD-B.P. 2067, Yaounde, Cameroun. jbmbarg@yahoo.fr</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Ten Hoopen</LastName><ForeName>G Martijn</ForeName><Initials>GM</Initials></Author><Author ValidYN="Y"><LastName>Begoude</LastName><ForeName>A D</ForeName><Initials>AD</Initials></Author><Author ValidYN="Y"><LastName>Tondje</LastName><ForeName>P R</ForeName><Initials>PR</Initials></Author><Author ValidYN="Y"><LastName>Kuate</LastName><ForeName>J</ForeName><Initials>J</Initials></Author><Author ValidYN="Y"><LastName>Ambang</LastName><ForeName>Z</ForeName><Initials>Z</Initials></Author><Author ValidYN="Y"><LastName>Amougou</LastName><ForeName>A</ForeName><Initials>A</Initials></Author><Author ValidYN="Y"><LastName>Schiffers</LastName><ForeName>B</ForeName><Initials>B</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>Belgium</Country><MedlineTA>Commun Agric Appl Biol Sci</MedlineTA><NlmUniqueID>101200320</NlmUniqueID><ISSNLinking>1379-1176</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D000074241">Peanut Oil</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D010938">Plant Oils</NameOfSubstance></Chemical><Chemical><RegistryNumber>5QUO05548Z</RegistryNumber><NameOfSubstance UI="D000073878">Palm Oil</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D002099" MajorTopicYN="Y">Cacao</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D000073878" MajorTopicYN="N">Palm Oil</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D000074241" MajorTopicYN="N">Peanut Oil</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D010838" MajorTopicYN="N">Phytophthora</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="Y">drug effects</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010935" MajorTopicYN="N">Plant Diseases</DescriptorName><QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName><QualifierName UI="Q000517" MajorTopicYN="Y">prevention & control</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010938" MajorTopicYN="N">Plant Oils</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName><QualifierName UI="Q000494" MajorTopicYN="N">pharmacology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013172" MajorTopicYN="N">Spores, Fungal</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014242" MajorTopicYN="N">Trichoderma</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName><QualifierName UI="Q000145" MajorTopicYN="N">classification</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2013</Year><Month>7</Month><Day>25</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2012</Year><Month>1</Month><Day>1</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2013</Year><Month>8</Month><Day>24</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">23878961</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Cameroun</li></country></list><tree><noCountry><name sortKey="Ambang, Z" sort="Ambang, Z" uniqKey="Ambang Z" first="Z" last="Ambang">Z. Ambang</name><name sortKey="Amougou, A" sort="Amougou, A" uniqKey="Amougou A" first="A" last="Amougou">A. Amougou</name><name sortKey="Begoude, A D" sort="Begoude, A D" uniqKey="Begoude A" first="A D" last="Begoude">A D Begoude</name><name sortKey="Kuate, J" sort="Kuate, J" uniqKey="Kuate J" first="J" last="Kuate">J. Kuate</name><name sortKey="Schiffers, B" sort="Schiffers, B" uniqKey="Schiffers B" first="B" last="Schiffers">B. Schiffers</name><name sortKey="Ten Hoopen, G Martijn" sort="Ten Hoopen, G Martijn" uniqKey="Ten Hoopen G" first="G Martijn" last="Ten Hoopen">G Martijn Ten Hoopen</name><name sortKey="Tondje, P R" sort="Tondje, P R" uniqKey="Tondje P" first="P R" last="Tondje">P R Tondje</name></noCountry><country name="Cameroun"><noRegion><name sortKey="Mbarga, J B" sort="Mbarga, J B" uniqKey="Mbarga J" first="J B" last="Mbarga">J B Mbarga</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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