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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Huanglongbing alters the structure and functional diversity of microbial communities associated with citrus rhizosphere</title>
<author><name sortKey="Trivedi, Pankaj" sort="Trivedi, Pankaj" uniqKey="Trivedi P" first="Pankaj" last="Trivedi">Pankaj Trivedi</name>
<affiliation><nlm:aff id="aff1"><institution>Citrus Research and Education Center, Department of Microbiology and Cell Science, University of Florida</institution>
, Lake Alfred, FL,<country>USA</country>
</nlm:aff>
</affiliation>
</author>
<author><name sortKey="He, Zhili" sort="He, Zhili" uniqKey="He Z" first="Zhili" last="He">Zhili He</name>
<affiliation><nlm:aff id="aff2"><institution>Department of Botany and Microbiology, Institute for Environmental Genomics, University of Oklahoma</institution>
, Norman, OK,<country>USA</country>
</nlm:aff>
</affiliation>
<affiliation><nlm:aff id="aff3">Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Van Nostrand, Joy D" sort="Van Nostrand, Joy D" uniqKey="Van Nostrand J" first="Joy D" last="Van Nostrand">Joy D. Van Nostrand</name>
<affiliation><nlm:aff id="aff2"><institution>Department of Botany and Microbiology, Institute for Environmental Genomics, University of Oklahoma</institution>
, Norman, OK,<country>USA</country>
</nlm:aff>
</affiliation>
<affiliation><nlm:aff id="aff3">Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Albrigo, Gene" sort="Albrigo, Gene" uniqKey="Albrigo G" first="Gene" last="Albrigo">Gene Albrigo</name>
<affiliation><nlm:aff id="aff4"><institution>Citrus Research and Education Center, Department of Horticultural Science, University of Florida</institution>
, Lake Alfred, FL,<country>USA</country>
</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Zhou, Jizhong" sort="Zhou, Jizhong" uniqKey="Zhou J" first="Jizhong" last="Zhou">Jizhong Zhou</name>
<affiliation><nlm:aff id="aff2"><institution>Department of Botany and Microbiology, Institute for Environmental Genomics, University of Oklahoma</institution>
, Norman, OK,<country>USA</country>
</nlm:aff>
</affiliation>
<affiliation><nlm:aff id="aff3">Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Wang, Nian" sort="Wang, Nian" uniqKey="Wang N" first="Nian" last="Wang">Nian Wang</name>
<affiliation><nlm:aff id="aff1"><institution>Citrus Research and Education Center, Department of Microbiology and Cell Science, University of Florida</institution>
, Lake Alfred, FL,<country>USA</country>
</nlm:aff>
</affiliation>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">PMC</idno>
<idno type="pmid">21796220</idno>
<idno type="pmc">3260493</idno>
<idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3260493</idno>
<idno type="RBID">PMC:3260493</idno>
<idno type="doi">10.1038/ismej.2011.100</idno>
<date when="2011">2011</date>
<idno type="wicri:Area/Pmc/Corpus">000001</idno>
</publicationStmt>
<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Huanglongbing alters the structure and functional diversity of microbial communities associated with citrus rhizosphere</title>
<author><name sortKey="Trivedi, Pankaj" sort="Trivedi, Pankaj" uniqKey="Trivedi P" first="Pankaj" last="Trivedi">Pankaj Trivedi</name>
<affiliation><nlm:aff id="aff1"><institution>Citrus Research and Education Center, Department of Microbiology and Cell Science, University of Florida</institution>
, Lake Alfred, FL,<country>USA</country>
</nlm:aff>
</affiliation>
</author>
<author><name sortKey="He, Zhili" sort="He, Zhili" uniqKey="He Z" first="Zhili" last="He">Zhili He</name>
<affiliation><nlm:aff id="aff2"><institution>Department of Botany and Microbiology, Institute for Environmental Genomics, University of Oklahoma</institution>
, Norman, OK,<country>USA</country>
</nlm:aff>
</affiliation>
<affiliation><nlm:aff id="aff3">Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Van Nostrand, Joy D" sort="Van Nostrand, Joy D" uniqKey="Van Nostrand J" first="Joy D" last="Van Nostrand">Joy D. Van Nostrand</name>
<affiliation><nlm:aff id="aff2"><institution>Department of Botany and Microbiology, Institute for Environmental Genomics, University of Oklahoma</institution>
, Norman, OK,<country>USA</country>
</nlm:aff>
</affiliation>
<affiliation><nlm:aff id="aff3">Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Albrigo, Gene" sort="Albrigo, Gene" uniqKey="Albrigo G" first="Gene" last="Albrigo">Gene Albrigo</name>
<affiliation><nlm:aff id="aff4"><institution>Citrus Research and Education Center, Department of Horticultural Science, University of Florida</institution>
, Lake Alfred, FL,<country>USA</country>
</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Zhou, Jizhong" sort="Zhou, Jizhong" uniqKey="Zhou J" first="Jizhong" last="Zhou">Jizhong Zhou</name>
<affiliation><nlm:aff id="aff2"><institution>Department of Botany and Microbiology, Institute for Environmental Genomics, University of Oklahoma</institution>
, Norman, OK,<country>USA</country>
</nlm:aff>
</affiliation>
<affiliation><nlm:aff id="aff3">Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Wang, Nian" sort="Wang, Nian" uniqKey="Wang N" first="Nian" last="Wang">Nian Wang</name>
<affiliation><nlm:aff id="aff1"><institution>Citrus Research and Education Center, Department of Microbiology and Cell Science, University of Florida</institution>
, Lake Alfred, FL,<country>USA</country>
</nlm:aff>
</affiliation>
</author>
</analytic>
<series><title level="j">The ISME Journal</title>
<idno type="ISSN">1751-7362</idno>
<idno type="eISSN">1751-7370</idno>
<imprint><date when="2011">2011</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
</fileDesc>
<profileDesc><textClass></textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en"><p>The diversity and stability of bacterial communities present in the rhizosphere heavily influence soil and plant quality and ecosystem sustainability. The goal of this study is to understand how ‘<italic>Candidatus</italic>
Liberibacter asiaticus' (known to cause Huanglongbing, HLB) influences the structure and functional potential of microbial communities associated with the citrus rhizosphere. Clone library sequencing and taxon/group-specific quantitative real-time PCR results showed that ‘<italic>Ca</italic>
. L. asiaticus' infection restructured the native microbial community associated with citrus rhizosphere. Within the bacterial community, phylum Proteobacteria with various genera typically known as successful rhizosphere colonizers were significantly greater in clone libraries from healthy samples, whereas phylum Acidobacteria, Actinobacteria and Firmicutes, typically more dominant in the bulk soil were higher in ‘<italic>Ca</italic>
. L. asiaticus'-infected samples. A comprehensive functional microarray GeoChip 3.0 was used to determine the effects of ‘<italic>Ca</italic>
. L. asiaticus' infection on the functional diversity of rhizosphere microbial communities. GeoChip analysis showed that HLB disease has significant effects on various functional guilds of bacteria. Many genes involved in key ecological processes such as nitrogen cycling, carbon fixation, phosphorus utilization, metal homeostasis and resistance were significantly greater in healthy than in the ‘<italic>Ca</italic>
. L. asiaticus'-infected citrus rhizosphere. Our results showed that the microbial community of the ‘<italic>Ca</italic>
. L. asiaticus'-infected citrus rhizosphere has shifted away from using more easily degraded sources of carbon to the more recalcitrant forms. Overall, our study provides evidence that the change in plant physiology mediated by ‘<italic>Ca</italic>
. L. asiaticus' infection could elicit shifts in the composition and functional potential of rhizosphere microbial communities. In the long term, these fluctuations might have important implications for the productivity and sustainability of citrus-producing agro-ecosystems.</p>
</div>
</front>
</TEI>
<pmc article-type="research-article"><pmc-comment>The publisher of this article does not allow downloading of the full text in XML form.</pmc-comment>
<front><journal-meta><journal-id journal-id-type="nlm-ta">ISME J</journal-id>
<journal-title-group><journal-title>The ISME Journal</journal-title>
</journal-title-group>
<issn pub-type="ppub">1751-7362</issn>
<issn pub-type="epub">1751-7370</issn>
<publisher><publisher-name>Nature Publishing Group</publisher-name>
</publisher>
</journal-meta>
<article-meta><article-id pub-id-type="pmid">21796220</article-id>
<article-id pub-id-type="pmc">3260493</article-id>
<article-id pub-id-type="pii">ismej2011100</article-id>
<article-id pub-id-type="doi">10.1038/ismej.2011.100</article-id>
<article-categories><subj-group subj-group-type="heading"><subject>Original Article</subject>
</subj-group>
</article-categories>
<title-group><article-title>Huanglongbing alters the structure and functional diversity of microbial communities associated with citrus rhizosphere</article-title>
<alt-title alt-title-type="running">Role of HLB in microbial communities</alt-title>
</title-group>
<contrib-group><contrib contrib-type="author"><name><surname>Trivedi</surname>
<given-names>Pankaj</given-names>
</name>
<xref ref-type="aff" rid="aff1">1</xref>
</contrib>
<contrib contrib-type="author"><name><surname>He</surname>
<given-names>Zhili</given-names>
</name>
<xref ref-type="aff" rid="aff2">2</xref>
<xref ref-type="aff" rid="aff3">3</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Van Nostrand</surname>
<given-names>Joy D</given-names>
</name>
<xref ref-type="aff" rid="aff2">2</xref>
<xref ref-type="aff" rid="aff3">3</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Albrigo</surname>
<given-names>Gene</given-names>
</name>
<xref ref-type="aff" rid="aff4">4</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Zhou</surname>
<given-names>Jizhong</given-names>
</name>
<xref ref-type="aff" rid="aff2">2</xref>
<xref ref-type="aff" rid="aff3">3</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Wang</surname>
<given-names>Nian</given-names>
</name>
<xref ref-type="aff" rid="aff1">1</xref>
<xref ref-type="corresp" rid="caf1">*</xref>
</contrib>
<aff id="aff1"><label>1</label>
<institution>Citrus Research and Education Center, Department of Microbiology and Cell Science, University of Florida</institution>
, Lake Alfred, FL,<country>USA</country>
</aff>
<aff id="aff2"><label>2</label>
<institution>Department of Botany and Microbiology, Institute for Environmental Genomics, University of Oklahoma</institution>
, Norman, OK,<country>USA</country>
</aff>
<aff id="aff3"><label>3</label>
Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA</aff>
<aff id="aff4"><label>4</label>
<institution>Citrus Research and Education Center, Department of Horticultural Science, University of Florida</institution>
, Lake Alfred, FL,<country>USA</country>
</aff>
</contrib-group>
<author-notes><corresp id="caf1"><label>*</label>
<institution>Citrus Research and Education Center, Department of Microbiology and Cell Science, University of Florida</institution>
, 700 Experiment Station Road, Lake Alfred, FL 33850, <country>USA</country>
. E-mail: <email>nianwang@crec.ifas.ufl.edu</email>
</corresp>
</author-notes>
<pub-date pub-type="ppub"><month>02</month>
<year>2012</year>
</pub-date>
<pub-date pub-type="epub"><day>28</day>
<month>07</month>
<year>2011</year>
</pub-date>
<volume>6</volume>
<issue>2</issue>
<fpage>363</fpage>
<lpage>383</lpage>
<history><date date-type="received"><day>28</day>
<month>02</month>
<year>2011</year>
</date>
<date date-type="rev-recd"><day>08</day>
<month>06</month>
<year>2011</year>
</date>
<date date-type="accepted"><day>10</day>
<month>06</month>
<year>2011</year>
</date>
</history>
<permissions><copyright-statement>Copyright © 2012 International Society for Microbial Ecology</copyright-statement>
<copyright-year>2012</copyright-year>
<copyright-holder>International Society for Microbial Ecology</copyright-holder>
</permissions>
<abstract><p>The diversity and stability of bacterial communities present in the rhizosphere heavily influence soil and plant quality and ecosystem sustainability. The goal of this study is to understand how ‘<italic>Candidatus</italic>
Liberibacter asiaticus' (known to cause Huanglongbing, HLB) influences the structure and functional potential of microbial communities associated with the citrus rhizosphere. Clone library sequencing and taxon/group-specific quantitative real-time PCR results showed that ‘<italic>Ca</italic>
. L. asiaticus' infection restructured the native microbial community associated with citrus rhizosphere. Within the bacterial community, phylum Proteobacteria with various genera typically known as successful rhizosphere colonizers were significantly greater in clone libraries from healthy samples, whereas phylum Acidobacteria, Actinobacteria and Firmicutes, typically more dominant in the bulk soil were higher in ‘<italic>Ca</italic>
. L. asiaticus'-infected samples. A comprehensive functional microarray GeoChip 3.0 was used to determine the effects of ‘<italic>Ca</italic>
. L. asiaticus' infection on the functional diversity of rhizosphere microbial communities. GeoChip analysis showed that HLB disease has significant effects on various functional guilds of bacteria. Many genes involved in key ecological processes such as nitrogen cycling, carbon fixation, phosphorus utilization, metal homeostasis and resistance were significantly greater in healthy than in the ‘<italic>Ca</italic>
. L. asiaticus'-infected citrus rhizosphere. Our results showed that the microbial community of the ‘<italic>Ca</italic>
. L. asiaticus'-infected citrus rhizosphere has shifted away from using more easily degraded sources of carbon to the more recalcitrant forms. Overall, our study provides evidence that the change in plant physiology mediated by ‘<italic>Ca</italic>
. L. asiaticus' infection could elicit shifts in the composition and functional potential of rhizosphere microbial communities. In the long term, these fluctuations might have important implications for the productivity and sustainability of citrus-producing agro-ecosystems.</p>
</abstract>
<kwd-group><kwd><italic>Candidatus</italic>
Liberibacter asiaticus</kwd>
<kwd>ecosystem functioning</kwd>
<kwd>GeoChip 3.0</kwd>
<kwd>huanglongbing</kwd>
<kwd>microbial diversity</kwd>
<kwd>nutrient cycling</kwd>
</kwd-group>
</article-meta>
</front>
</pmc>
</record>
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