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dc.contributor.author
Sanchéz, Elena
dc.contributor.author
Lino, Gladys
dc.contributor.author
Arias, Claudia Vanina
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dc.contributor.author
Serrat, Xavier
dc.contributor.author
Nogués, Salvador
dc.date.available
2019-12-20T20:04:57Z
dc.date.issued
2018-06
dc.identifier.citation
Sanchéz, Elena; Lino, Gladys; Arias, Claudia Vanina; Serrat, Xavier; Nogués, Salvador; Photosynthesis, Resource Acquisition and Growth Responses of Two Biomass Crops Subjected to Water Stress; Science Publishing Group; Journal of Plant Sciences; 6; 6-2018; 68-86
dc.identifier.issn
2331-0723
dc.identifier.uri
http://hdl.handle.net/11336/92657
dc.description.abstract
This study compares photosynthesis, growth, 13C and 15N labelling patterns of two biomass crops (Arundo donaxL. and Panicum virgatum L.) grown under water stress in greenhouse conditions. Plants were exposed to three water stresslevels: control (C, 100% Pot Capacity), mild stress (MS, 50% PC) and severe stress (SS, 25% PC). Photosynthesis,fluorescence parameters and relative water content were measured at the beginning (Ti) and the end of the experiment (Tf).Biomass parameters were measured at Tf. Short-term double labelling with 13C and 15N stable isotopes was performed in bothspecies. Isotopic analyses of total organic matter, total soluble sugars and the CO2 respired were undertaken at T0 (prelabelling),T1 (24h after labelling) and T2 (7 days after labelling). Immediately after the 13C and 15N labelling, stems andrhizomes seemed to be the main sinks for labelled carbon and nitrogen in both species. Moreover, not all of the labelled carbonand nitrogen substrate was used by plant metabolism after seven days. Decreases in photosynthesis parameters were observedas a consequence of the increase in water stress (WS) in both species, with a greater magnitude decline in giant reed than inswitchgrass. A decrease in height, number of green leaves and total dry weight due to WS was observed in both species. Bothspecies were more 13C-enriched and more 15N-depleted during the increases in WS due to lower stomatal conductance andtranspiration. In general, WS accelerated plant phenology and, consequently, the accumulation of storage compounds in therhizome occurred in response to stress. This effect was more clearly visible in switchgrass than in giant reed.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Science Publishing Group
dc.rights
info:eu-repo/semantics/openAccess
dc.rights
Atribución-NoComercial-CompartirIgual 2.5 Argentina (CC BY-NC-SA 2.5 AR)
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ARUNDO DONAX L.
dc.subject
PANICUM VIRGATUM L.
dc.subject
13C AND 15N ISOTOPE LABELLING
dc.subject
BIOMASS
dc.subject.classification
Biología del Desarrollo
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Photosynthesis, Resource Acquisition and Growth Responses of Two Biomass Crops Subjected to Water Stress
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-10-17T14:55:43Z
dc.journal.volume
6
dc.journal.pagination
68-86
dc.journal.pais
Estados Unidos
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dc.description.fil
Fil: Sanchéz, Elena. Universidad de Barcelona. Facultad de Biología; España
dc.description.fil
Fil: Lino, Gladys. Universidad de Barcelona. Facultad de Biología; España
dc.description.fil
Fil: Arias, Claudia Vanina. Universidad de Barcelona. Facultad de Biología; España
dc.description.fil
Fil: Serrat, Xavier. Universidad de Barcelona. Facultad de Biología; España
dc.description.fil
Fil: Nogués, Salvador. Universidad de Barcelona. Facultad de Biología; España
dc.journal.title
Journal of Plant Sciences
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.11648/j.jps.20180603.11
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencepublishinggroup.com/journal/paperinfo?journalid=215&doi=10.11648/j.jps.20180603.11
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