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dc.contributor.authorWang, Kehuaen_US
dc.contributor.authorZhang, Xunzhongen_US
dc.contributor.authorGoatley, Mikeen_US
dc.contributor.authorErvin, Eriken_US
dc.date.accessioned2018-10-04T14:11:22Z
dc.date.available2018-10-04T14:11:22Z
dc.date.issued2014-07-22en_US
dc.identifier.othere102914en_US
dc.identifier.urihttp://hdl.handle.net/10919/85225
dc.description.abstractHeat stress is a primary factor causing summer bentgrass decline. Changes in gene expression at the transcriptional and/or translational level are thought to be a fundamental mechanism in plant response to environmental stresses. Heat stress redirects protein synthesis in higher plants and results in stress protein synthesis, particularly heat shock proteins (HSPs). The goal of this work was to analyze the expression pattern of major HSPs in creeping bentgrass (Agrostis stolonifera L.) during different heat stress periods and to study the influence of nitrogen (N) on the HSP expression patterns. A growth chamber study on ‘Penn-A4’ creeping bentgrass subjected to 38/28°C day/night for 50 days, was conducted with four nitrate rates (no N-0, low N-2.5, medium N-7.5, and high N-12.5 kg N ha−1) applied biweekly. Visual turfgrass quality (TQ), normalized difference vegetation index (NDVI), photochemical efficiency of photosystem II (Fv/Fm), shoot electrolyte leakage (ShEL), and root viability (RV) were monitored, along with the expression pattern of HSPs. There was no difference in measured parameters between treatments until week seven, except TQ at week five. At week seven, grass at medium N had better TQ, NDVI, and Fv/Fm accompanied by lower ShEL and higher RV, suggesting a major role in improved heat tolerance. All the investigated HSPs (HSP101, HSP90, HSP70, and sHSPs) were up-regulated by heat stress. Their expression patterns indicated cooperation between different HSPs and their roles in bentgrass thermotolerance. In addition, their production seems to be resource dependent. This study could further improve our understanding about how different N levels affect bentgrass thermotolerance.en_US
dc.format.mimetypeapplication/pdfen_US
dc.language.isoen_USen_US
dc.publisherPLOSen_US
dc.rightsCreative Commons Attribution 4.0en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0en_US
dc.titleHeat Shock Proteins in Relation to Heat Stress Tolerance of Creeping Bentgrass at Different N Levelsen_US
dc.typeArticle - Refereeden_US
dc.description.versionPeer Revieweden_US
dc.title.serialPLOS ONEen_US
dc.identifier.doihttps://doi.org/10.1371/journal.pone.0102914en_US
dc.identifier.volume9en_US
dc.identifier.issue7en_US
dc.type.dcmitypeTexten_US
dc.identifier.pmid25050702en_US
dc.identifier.eissn1932-6203en_US


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Creative Commons Attribution 4.0
License: Creative Commons Attribution 4.0