Quantification of water uptake by arbuscular mycorrhizal hyphae and its significance for leaf growth, water relations, and gas exchange of barley subjected to drought stress.
Identifieur interne : 003378 ( Main/Corpus ); précédent : 003377; suivant : 003379Quantification of water uptake by arbuscular mycorrhizal hyphae and its significance for leaf growth, water relations, and gas exchange of barley subjected to drought stress.
Auteurs : M A Khalvati ; Y. Hu ; A. Mozafar ; U. SchmidhalterSource :
- Plant biology (Stuttgart, Germany) [ 1435-8603 ] ; 2005.
English descriptors
- KwdEn :
- Circadian Rhythm (MeSH), Desiccation (MeSH), Disasters (MeSH), Hordeum (growth & development), Hordeum (metabolism), Hyphae (metabolism), Mycorrhizae (metabolism), Photosynthesis (MeSH), Plant Leaves (growth & development), Plant Leaves (metabolism), Plant Roots (metabolism), Plant Roots (microbiology), Time Factors (MeSH), Water (metabolism).
- MESH :
- chemical , metabolism : Water.
- growth & development : Hordeum, Plant Leaves.
- metabolism : Hordeum, Hyphae, Mycorrhizae, Plant Leaves, Plant Roots.
- microbiology : Plant Roots.
- Circadian Rhythm, Desiccation, Disasters, Photosynthesis, Time Factors.
Abstract
Arbuscular mycorrhizal fungi alleviate drought stress in their host plants via the direct uptake and transfer of water and nutrients through the fungal hyphae to the host plants. To quantify the contribution of the hyphae to plant water uptake, a new split-root hyphae system was designed and employed on barley grown in loamy soil inoculated with Glomus intraradices under well-watered and drought conditions in a growth chamber with a 14-h light period and a constant temperature (15 degrees C; day/night). Drought conditions were initiated 21 days after sowing, with a total of eight 7-day drying cycles applied. Leaf water relations, net photosynthesis rates, and stomatal conductance were measured at the end of each drying cycle. Plants were harvested 90 days after sowing. Compared to the control treatment, the leaf elongation rate and the dry weight of the shoots and roots were reduced in all plants under drought conditions. However, drought resistance was comparatively increased in the mycorrhizal host plants, which suffered smaller decreases in leaf elongation, net photosynthetic rate, stomatal conductance, and turgor pressure compared to the non-mycorrhizal plants. Quantification of the contribution of the arbuscular mycorrhizal hyphae to root water uptake showed that, compared to the non-mycorrhizal treatment, 4 % of water in the hyphal compartment was transferred to the root compartment through the arbuscular mycorrhizal hyphae under drought conditions. This indicates that there is indeed transport of water by the arbuscular mycorrhizal hyphae under drought conditions. Although only a small amount of water transport from the hyphal compartment was detected, the much higher hyphal density found in the root compartment than in the hyphal compartment suggests that a larger amount of water uptake by the arbuscular mycorrhizal hyphae may occur in the root compartment.
DOI: 10.1055/s-2005-872893
PubMed: 16388474
Links to Exploration step
pubmed:16388474Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Quantification of water uptake by arbuscular mycorrhizal hyphae and its significance for leaf growth, water relations, and gas exchange of barley subjected to drought stress.</title><author><name sortKey="Khalvati, M A" sort="Khalvati, M A" uniqKey="Khalvati M" first="M A" last="Khalvati">M A Khalvati</name><affiliation><nlm:affiliation>Chair of Plant Nutrition, Technical University of Munich, Am Hochanger 1, 85350 Freising-Weihenstephan, Germany.</nlm:affiliation></affiliation></author><author><name sortKey="Hu, Y" sort="Hu, Y" uniqKey="Hu Y" first="Y" last="Hu">Y. Hu</name></author><author><name sortKey="Mozafar, A" sort="Mozafar, A" uniqKey="Mozafar A" first="A" last="Mozafar">A. Mozafar</name></author><author><name sortKey="Schmidhalter, U" sort="Schmidhalter, U" uniqKey="Schmidhalter U" first="U" last="Schmidhalter">U. Schmidhalter</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2005">2005</date><idno type="RBID">pubmed:16388474</idno><idno type="pmid">16388474</idno><idno type="doi">10.1055/s-2005-872893</idno><idno type="wicri:Area/Main/Corpus">003378</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">003378</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Quantification of water uptake by arbuscular mycorrhizal hyphae and its significance for leaf growth, water relations, and gas exchange of barley subjected to drought stress.</title><author><name sortKey="Khalvati, M A" sort="Khalvati, M A" uniqKey="Khalvati M" first="M A" last="Khalvati">M A Khalvati</name><affiliation><nlm:affiliation>Chair of Plant Nutrition, Technical University of Munich, Am Hochanger 1, 85350 Freising-Weihenstephan, Germany.</nlm:affiliation></affiliation></author><author><name sortKey="Hu, Y" sort="Hu, Y" uniqKey="Hu Y" first="Y" last="Hu">Y. Hu</name></author><author><name sortKey="Mozafar, A" sort="Mozafar, A" uniqKey="Mozafar A" first="A" last="Mozafar">A. Mozafar</name></author><author><name sortKey="Schmidhalter, U" sort="Schmidhalter, U" uniqKey="Schmidhalter U" first="U" last="Schmidhalter">U. Schmidhalter</name></author></analytic><series><title level="j">Plant biology (Stuttgart, Germany)</title><idno type="ISSN">1435-8603</idno><imprint><date when="2005" type="published">2005</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Circadian Rhythm (MeSH)</term><term>Desiccation (MeSH)</term><term>Disasters (MeSH)</term><term>Hordeum (growth & development)</term><term>Hordeum (metabolism)</term><term>Hyphae (metabolism)</term><term>Mycorrhizae (metabolism)</term><term>Photosynthesis (MeSH)</term><term>Plant Leaves (growth & development)</term><term>Plant Leaves (metabolism)</term><term>Plant Roots (metabolism)</term><term>Plant Roots (microbiology)</term><term>Time Factors (MeSH)</term><term>Water (metabolism)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Water</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Hordeum</term><term>Plant Leaves</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Hordeum</term><term>Hyphae</term><term>Mycorrhizae</term><term>Plant Leaves</term><term>Plant Roots</term></keywords><keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Plant Roots</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Circadian Rhythm</term><term>Desiccation</term><term>Disasters</term><term>Photosynthesis</term><term>Time Factors</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Arbuscular mycorrhizal fungi alleviate drought stress in their host plants via the direct uptake and transfer of water and nutrients through the fungal hyphae to the host plants. To quantify the contribution of the hyphae to plant water uptake, a new split-root hyphae system was designed and employed on barley grown in loamy soil inoculated with Glomus intraradices under well-watered and drought conditions in a growth chamber with a 14-h light period and a constant temperature (15 degrees C; day/night). Drought conditions were initiated 21 days after sowing, with a total of eight 7-day drying cycles applied. Leaf water relations, net photosynthesis rates, and stomatal conductance were measured at the end of each drying cycle. Plants were harvested 90 days after sowing. Compared to the control treatment, the leaf elongation rate and the dry weight of the shoots and roots were reduced in all plants under drought conditions. However, drought resistance was comparatively increased in the mycorrhizal host plants, which suffered smaller decreases in leaf elongation, net photosynthetic rate, stomatal conductance, and turgor pressure compared to the non-mycorrhizal plants. Quantification of the contribution of the arbuscular mycorrhizal hyphae to root water uptake showed that, compared to the non-mycorrhizal treatment, 4 % of water in the hyphal compartment was transferred to the root compartment through the arbuscular mycorrhizal hyphae under drought conditions. This indicates that there is indeed transport of water by the arbuscular mycorrhizal hyphae under drought conditions. Although only a small amount of water transport from the hyphal compartment was detected, the much higher hyphal density found in the root compartment than in the hyphal compartment suggests that a larger amount of water uptake by the arbuscular mycorrhizal hyphae may occur in the root compartment.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">16388474</PMID><DateCompleted><Year>2006</Year><Month>04</Month><Day>20</Day></DateCompleted><DateRevised><Year>2013</Year><Month>11</Month><Day>21</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">1435-8603</ISSN><JournalIssue CitedMedium="Print"><Volume>7</Volume><Issue>6</Issue><PubDate><Year>2005</Year><Month>Nov</Month></PubDate></JournalIssue><Title>Plant biology (Stuttgart, Germany)</Title><ISOAbbreviation>Plant Biol (Stuttg)</ISOAbbreviation></Journal><ArticleTitle>Quantification of water uptake by arbuscular mycorrhizal hyphae and its significance for leaf growth, water relations, and gas exchange of barley subjected to drought stress.</ArticleTitle><Pagination><MedlinePgn>706-12</MedlinePgn></Pagination><Abstract><AbstractText>Arbuscular mycorrhizal fungi alleviate drought stress in their host plants via the direct uptake and transfer of water and nutrients through the fungal hyphae to the host plants. To quantify the contribution of the hyphae to plant water uptake, a new split-root hyphae system was designed and employed on barley grown in loamy soil inoculated with Glomus intraradices under well-watered and drought conditions in a growth chamber with a 14-h light period and a constant temperature (15 degrees C; day/night). Drought conditions were initiated 21 days after sowing, with a total of eight 7-day drying cycles applied. Leaf water relations, net photosynthesis rates, and stomatal conductance were measured at the end of each drying cycle. Plants were harvested 90 days after sowing. Compared to the control treatment, the leaf elongation rate and the dry weight of the shoots and roots were reduced in all plants under drought conditions. However, drought resistance was comparatively increased in the mycorrhizal host plants, which suffered smaller decreases in leaf elongation, net photosynthetic rate, stomatal conductance, and turgor pressure compared to the non-mycorrhizal plants. Quantification of the contribution of the arbuscular mycorrhizal hyphae to root water uptake showed that, compared to the non-mycorrhizal treatment, 4 % of water in the hyphal compartment was transferred to the root compartment through the arbuscular mycorrhizal hyphae under drought conditions. This indicates that there is indeed transport of water by the arbuscular mycorrhizal hyphae under drought conditions. Although only a small amount of water transport from the hyphal compartment was detected, the much higher hyphal density found in the root compartment than in the hyphal compartment suggests that a larger amount of water uptake by the arbuscular mycorrhizal hyphae may occur in the root compartment.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Khalvati</LastName><ForeName>M A</ForeName><Initials>MA</Initials><AffiliationInfo><Affiliation>Chair of Plant Nutrition, Technical University of Munich, Am Hochanger 1, 85350 Freising-Weihenstephan, Germany.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Hu</LastName><ForeName>Y</ForeName><Initials>Y</Initials></Author><Author ValidYN="Y"><LastName>Mozafar</LastName><ForeName>A</ForeName><Initials>A</Initials></Author><Author ValidYN="Y"><LastName>Schmidhalter</LastName><ForeName>U</ForeName><Initials>U</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>England</Country><MedlineTA>Plant Biol (Stuttg)</MedlineTA><NlmUniqueID>101148926</NlmUniqueID><ISSNLinking>1435-8603</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>059QF0KO0R</RegistryNumber><NameOfSubstance UI="D014867">Water</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D002940" MajorTopicYN="N">Circadian Rhythm</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D003890" MajorTopicYN="N">Desiccation</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D004190" MajorTopicYN="N">Disasters</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D001467" MajorTopicYN="N">Hordeum</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D025301" MajorTopicYN="N">Hyphae</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D038821" MajorTopicYN="N">Mycorrhizae</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010788" MajorTopicYN="N">Photosynthesis</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018515" MajorTopicYN="N">Plant Leaves</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="Y">growth & development</QualifierName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018517" MajorTopicYN="N">Plant Roots</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName><QualifierName UI="Q000382" MajorTopicYN="N">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013997" MajorTopicYN="N">Time Factors</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014867" MajorTopicYN="N">Water</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>2006</Year><Month>1</Month><Day>3</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2006</Year><Month>4</Month><Day>21</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2006</Year><Month>1</Month><Day>3</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">16388474</ArticleId><ArticleId IdType="doi">10.1055/s-2005-872893</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Bois/explor/MycorrhizaeV1/Data/Main/Corpus
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 003378 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Corpus/biblio.hfd -nk 003378 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Bois
|area= MycorrhizaeV1
|flux= Main
|étape= Corpus
|type= RBID
|clé= pubmed:16388474
|texte= Quantification of water uptake by arbuscular mycorrhizal hyphae and its significance for leaf growth, water relations, and gas exchange of barley subjected to drought stress.
}}
Pour générer des pages wiki
HfdIndexSelect -h $EXPLOR_AREA/Data/Main/Corpus/RBID.i -Sk "pubmed:16388474" \
| HfdSelect -Kh $EXPLOR_AREA/Data/Main/Corpus/biblio.hfd \
| NlmPubMed2Wicri -a MycorrhizaeV1
| This area was generated with Dilib version V0.6.37. |  |