Morpho-physiological variations in response to NaCl stress during vegetative and reproductive development of rice
NAGIOS: RODERIC FUNCIONANDO

Morpho-physiological variations in response to NaCl stress during vegetative and reproductive development of rice

DSpace Repository

Morpho-physiological variations in response to NaCl stress during vegetative and reproductive development of rice

Show simple item record

dc.contributor.author Wankhade, Shantanu Devidas
dc.contributor.author Cornejo, María Jesús
dc.contributor.author Mateu Andrés, Isabel
dc.contributor.author Sanz Grau, Amparo
dc.date.accessioned 2014-04-01T14:53:25Z
dc.date.available 2014-04-01T14:53:25Z
dc.date.issued 2013
dc.identifier.uri http://dx.doi.org/10.1007/s11738-012-1075-y
dc.identifier.uri http://hdl.handle.net/10550/33967
dc.description.abstract The complex nature of plant resistance to adverse environmental conditions, such as salinity and drought requires a better understanding of the stress-induced changes that may be involved in tolerance mechanisms. Here we investigate stress-related morpho-physiological effects during vegetative and reproductive growth in two Japonica rice cultivars (Bomba and Bahia) exposed to a range of NaCl concentrations from the seedling stage. The stress-related detrimental effects were observed either earlier or to a higher extent in cv. Bomba than in Bahia. Damages to the photosynthetic apparatus were related to loss of chlorophyll (Chl) and to a decrease of the maximum potential efficiency of PSII (Fv/Fm), affecting negatively net CO2 assimilation rate (PN). Stress-related leaf anatomical alterations were analysed during the vegetative and reproductive stages. The size of bulliform cells as well as dimensions related to the vascular system increased under mild stress but decreased in the longer term or under higher stress level. The pattern of the anatomical alterations observed at the reproductive stage under 20 mM NaCl was reflected in poor panicle development and yield loss, with effects more pronounced in cv. Bomba than in Bahia. In summary, our results show that some physiological and, particularly, leaf anatomical responses induced by NaCl stress are distinctive indicators of sensitivity to salt stress in rice cultivars.
dc.relation.ispartof Acta Physiologiae Plantarum, 2013, vol. 35, p. 323-333
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Wankhade, Shantanu Devidas Cornejo, María Jesús Mateu Andrés, Isabel Sanz, Amparo 2013 Morpho-physiological variations in response to NaCl stress during vegetative and reproductive development of rice Acta Physiologiae Plantarum 35 323 333
dc.subject Biodiversitat
dc.title Morpho-physiological variations in response to NaCl stress during vegetative and reproductive development of rice
dc.type info:eu-repo/semantics/article
dc.date.updated 2014-04-01T14:53:25Z
dc.identifier.doi http://dx.doi.org/10.1007/s11738-012-1075-y
dc.identifier.idgrec 094556

View       (755.6Kb)

This item appears in the following Collection(s)

Show simple item record

Search DSpace

Advanced Search

Browse

Statistics