The impact of tillage practices on arbuscular mycorrhizal fungal diversity in subtropical crops.
Identifieur interne : 002C78 ( Main/Corpus ); précédent : 002C77; suivant : 002C79The impact of tillage practices on arbuscular mycorrhizal fungal diversity in subtropical crops.
Auteurs : M M Alguacil ; E. Lumini ; A. Roldán ; J R Salinas-García ; P. Bonfante ; V. BianciottoSource :
- Ecological applications : a publication of the Ecological Society of America [ 1051-0761 ] ; 2008.
English descriptors
- KwdEn :
- MESH :
- genetics : Mycorrhizae.
- methods : Agriculture.
- microbiology : Crops, Agricultural.
- physiology : Mycorrhizae.
- Climate, Phylogeny.
Abstract
Arbuscular mycorrhizal fungi (AMF) are a main component of soil microbiota in most agrosystems. As obligately mutualistic symbionts, they colonize the roots of the majority of plants, including crop plants. We used molecular techniques to investigate how different tillage systems (moldboard, shred-bedding, subsoil-bedding, and no tillage) can influence the AM fungal community colonizing maize, bean, and sorghum roots in an experimental site located in northern Tamaulipas, Mexico. Roots from 36 plants were analyzed using AM fungal-specific primers to partially amplify the small subunit (SSU) of the ribosomal DNA genes. More than 880 clones were screened for restriction fragment length polymorphism (RFLP) variation, and 173 of these were sequenced. Ten AM fungal types were identified and clustered into three AM fungal families: Gigasporaceae, Glomaceae, and Paraglomaceae. Glomus was the dominating taxon in all the samples. Four of the 10 identified types were distinct from any previously published sequences and could correspond to either known unsequenced species or unknown species. The fungal diversity was low in the four agriculture management systems, but the multidimensional scaling (MDS) analysis and log-linear-saturated model indicated that the composition of the AMF community was significantly affected by the tillage system. In conclusion, since some fungal types were treatment specific, agricultural practices could directly or indirectly influence AM biodiversity.
DOI: 10.1890/07-0521.1
PubMed: 18488613
Links to Exploration step
pubmed:18488613Le document en format XML
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Roldán</name></author><author><name sortKey="Salinas Garcia, J R" sort="Salinas Garcia, J R" uniqKey="Salinas Garcia J" first="J R" last="Salinas-García">J R Salinas-García</name></author><author><name sortKey="Bonfante, P" sort="Bonfante, P" uniqKey="Bonfante P" first="P" last="Bonfante">P. Bonfante</name></author><author><name sortKey="Bianciotto, V" sort="Bianciotto, V" uniqKey="Bianciotto V" first="V" last="Bianciotto">V. 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Lumini</name></author><author><name sortKey="Roldan, A" sort="Roldan, A" uniqKey="Roldan A" first="A" last="Roldán">A. Roldán</name></author><author><name sortKey="Salinas Garcia, J R" sort="Salinas Garcia, J R" uniqKey="Salinas Garcia J" first="J R" last="Salinas-García">J R Salinas-García</name></author><author><name sortKey="Bonfante, P" sort="Bonfante, P" uniqKey="Bonfante P" first="P" last="Bonfante">P. Bonfante</name></author><author><name sortKey="Bianciotto, V" sort="Bianciotto, V" uniqKey="Bianciotto V" first="V" last="Bianciotto">V. Bianciotto</name></author></analytic><series><title level="j">Ecological applications : a publication of the Ecological Society of America</title><idno type="ISSN">1051-0761</idno><imprint><date when="2008" type="published">2008</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Agriculture (methods)</term><term>Climate (MeSH)</term><term>Crops, Agricultural (microbiology)</term><term>Mycorrhizae (genetics)</term><term>Mycorrhizae (physiology)</term><term>Phylogeny (MeSH)</term></keywords><keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Mycorrhizae</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Agriculture</term></keywords><keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Crops, Agricultural</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Mycorrhizae</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Climate</term><term>Phylogeny</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Arbuscular mycorrhizal fungi (AMF) are a main component of soil microbiota in most agrosystems. As obligately mutualistic symbionts, they colonize the roots of the majority of plants, including crop plants. We used molecular techniques to investigate how different tillage systems (moldboard, shred-bedding, subsoil-bedding, and no tillage) can influence the AM fungal community colonizing maize, bean, and sorghum roots in an experimental site located in northern Tamaulipas, Mexico. Roots from 36 plants were analyzed using AM fungal-specific primers to partially amplify the small subunit (SSU) of the ribosomal DNA genes. More than 880 clones were screened for restriction fragment length polymorphism (RFLP) variation, and 173 of these were sequenced. Ten AM fungal types were identified and clustered into three AM fungal families: Gigasporaceae, Glomaceae, and Paraglomaceae. Glomus was the dominating taxon in all the samples. Four of the 10 identified types were distinct from any previously published sequences and could correspond to either known unsequenced species or unknown species. The fungal diversity was low in the four agriculture management systems, but the multidimensional scaling (MDS) analysis and log-linear-saturated model indicated that the composition of the AMF community was significantly affected by the tillage system. In conclusion, since some fungal types were treatment specific, agricultural practices could directly or indirectly influence AM biodiversity.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">18488613</PMID><DateCompleted><Year>2008</Year><Month>10</Month><Day>28</Day></DateCompleted><DateRevised><Year>2019</Year><Month>09</Month><Day>17</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">1051-0761</ISSN><JournalIssue CitedMedium="Print"><Volume>18</Volume><Issue>2</Issue><PubDate><Year>2008</Year><Month>Mar</Month></PubDate></JournalIssue><Title>Ecological applications : a publication of the Ecological Society of America</Title><ISOAbbreviation>Ecol Appl</ISOAbbreviation></Journal><ArticleTitle>The impact of tillage practices on arbuscular mycorrhizal fungal diversity in subtropical crops.</ArticleTitle><Pagination><MedlinePgn>527-36</MedlinePgn></Pagination><Abstract><AbstractText>Arbuscular mycorrhizal fungi (AMF) are a main component of soil microbiota in most agrosystems. As obligately mutualistic symbionts, they colonize the roots of the majority of plants, including crop plants. We used molecular techniques to investigate how different tillage systems (moldboard, shred-bedding, subsoil-bedding, and no tillage) can influence the AM fungal community colonizing maize, bean, and sorghum roots in an experimental site located in northern Tamaulipas, Mexico. Roots from 36 plants were analyzed using AM fungal-specific primers to partially amplify the small subunit (SSU) of the ribosomal DNA genes. More than 880 clones were screened for restriction fragment length polymorphism (RFLP) variation, and 173 of these were sequenced. Ten AM fungal types were identified and clustered into three AM fungal families: Gigasporaceae, Glomaceae, and Paraglomaceae. Glomus was the dominating taxon in all the samples. Four of the 10 identified types were distinct from any previously published sequences and could correspond to either known unsequenced species or unknown species. The fungal diversity was low in the four agriculture management systems, but the multidimensional scaling (MDS) analysis and log-linear-saturated model indicated that the composition of the AMF community was significantly affected by the tillage system. In conclusion, since some fungal types were treatment specific, agricultural practices could directly or indirectly influence AM biodiversity.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Alguacil</LastName><ForeName>M M</ForeName><Initials>MM</Initials><AffiliationInfo><Affiliation>Dipartimento di Biologia Vegetale, Universitá degli Studi di Torino and Istituto per la Protezione delle Piante (IPP) del CNR, Sezione di Micologia, V.le Mattioli 25, Torino 10125, Italy.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Lumini</LastName><ForeName>E</ForeName><Initials>E</Initials></Author><Author ValidYN="Y"><LastName>Roldán</LastName><ForeName>A</ForeName><Initials>A</Initials></Author><Author ValidYN="Y"><LastName>Salinas-García</LastName><ForeName>J R</ForeName><Initials>JR</Initials></Author><Author ValidYN="Y"><LastName>Bonfante</LastName><ForeName>P</ForeName><Initials>P</Initials></Author><Author ValidYN="Y"><LastName>Bianciotto</LastName><ForeName>V</ForeName><Initials>V</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Ecol Appl</MedlineTA><NlmUniqueID>9889808</NlmUniqueID><ISSNLinking>1051-0761</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000383" MajorTopicYN="N">Agriculture</DescriptorName><QualifierName UI="Q000379" MajorTopicYN="Y">methods</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D002980" MajorTopicYN="N">Climate</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018556" MajorTopicYN="N">Crops, Agricultural</DescriptorName><QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D038821" MajorTopicYN="N">Mycorrhizae</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010802" MajorTopicYN="N">Phylogeny</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>2008</Year><Month>5</Month><Day>21</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2008</Year><Month>10</Month><Day>29</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2008</Year><Month>5</Month><Day>21</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">18488613</ArticleId><ArticleId IdType="doi">10.1890/07-0521.1</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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