caa a22 4500 445841516 CHVBK 20180317145345.0 cr unu---uuuuu 170323e20110901xx s 000 0 eng 10.1007/s10725-011-9574-1 doi (NATIONALLICENCE)springer-10.1007/s10725-011-9574-1 Calcium can moderate changes on membrane structure and lipid composition in cowpea plants under salt stress [Elektronische Daten] [Francisco Guimarães, Claudivan de Lacerda, Elton Marques, Maria de Miranda, Carlos de Abreu, José Prisco, Enéas Gomes-Filho] The effects of supplemental Ca2+ on membrane integrity and lipid composition of cowpea plants submitted to salt stress (75mM NaCl) were evaluated. The experimental design was factorial (2×6+1) corresponding to six saline treatments supplemented with CaCl2 and six saline treatments supplemented with CaSO4, both at 0.5, 1.25, 2.5, 5.0, 7.5 and 10.0mM, plus control treatment (plants grown in half-strength Hoagland's nutrient solution without supplemental calcium addition). Samples of leaves and root tips were analyzed for total lipid, glycolipid and fatty acid contents and membrane damage symptoms. Salt stress greatly reduced total lipid content in leaves and roots and caused great damage to membrane structures. In leaves, the glycolipid content was differently influenced by calcium treatments. Moreover, salinity increased the saturated/unsaturated fatty acid ratio in leaves and an increase in the concentration of calcium intensified this response. In roots, only saturated fatty acids were detected and their content was strongly influenced by salinity and very little by calcium treatments. Supplemental Ca2+ was unable to ameliorate the negative effects of salinity on the structural integrity and fluidity of plant membranes in cowpea. Springer Science+Business Media B.V., 2011 Supplemental Ca2+ nationallicence Membrane lipids nationallicence Salinity nationallicence Vigna unguiculata nationallicence Guimarães Francisco Fundação Cearense de Meteorologia e Recursos Hídricos, FUNCEME, 60115-221, Fortaleza, Ceará, Brazil aut de Lacerda Claudivan Departamento de Engenharia Agrícola and Instituto Nacional de Ciência e Tecnologia em Salinidade (INCTSal/CNPq), Universidade Federal do Ceará, CP 12168, 60020-970, Fortaleza, Ceará, Brazil aut Marques Elton Departamento de Bioquímica e Biologia Molecular and Instituto Nacional de Ciência e Tecnologia em Salinidade (INCTSal/CNPq), Universidade Federal do Ceará, CP 6039, 60440-970, Fortaleza, Ceará, Brazil aut de Miranda Maria Departamento de Bioquímica e Biologia Molecular and Instituto Nacional de Ciência e Tecnologia em Salinidade (INCTSal/CNPq), Universidade Federal do Ceará, CP 6039, 60440-970, Fortaleza, Ceará, Brazil aut de Abreu Carlos Departamento de Bioquímica e Biologia Molecular and Instituto Nacional de Ciência e Tecnologia em Salinidade (INCTSal/CNPq), Universidade Federal do Ceará, CP 6039, 60440-970, Fortaleza, Ceará, Brazil aut Prisco José Departamento de Bioquímica e Biologia Molecular and Instituto Nacional de Ciência e Tecnologia em Salinidade (INCTSal/CNPq), Universidade Federal do Ceará, CP 6039, 60440-970, Fortaleza, Ceará, Brazil aut Gomes-Filho Enéas Departamento de Bioquímica e Biologia Molecular and Instituto Nacional de Ciência e Tecnologia em Salinidade (INCTSal/CNPq), Universidade Federal do Ceará, CP 6039, 60440-970, Fortaleza, Ceará, Brazil aut Plant Growth Regulation Springer Netherlands 65/1(2011-09-01), 55-63 0167-6903 65:1<55 2011 65 10725 https://doi.org/10.1007/s10725-011-9574-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10725-011-9574-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Guimarães Francisco Fundação Cearense de Meteorologia e Recursos Hídricos, FUNCEME, 60115-221, Fortaleza, Ceará, Brazil aut NATIONALLICENCE 700 1- de Lacerda Claudivan Departamento de Engenharia Agrícola and Instituto Nacional de Ciência e Tecnologia em Salinidade (INCTSal/CNPq), Universidade Federal do Ceará, CP 12168, 60020-970, Fortaleza, Ceará, Brazil aut NATIONALLICENCE 700 1- Marques Elton Departamento de Bioquímica e Biologia Molecular and Instituto Nacional de Ciência e Tecnologia em Salinidade (INCTSal/CNPq), Universidade Federal do Ceará, CP 6039, 60440-970, Fortaleza, Ceará, Brazil aut NATIONALLICENCE 700 1- de Miranda Maria Departamento de Bioquímica e Biologia Molecular and Instituto Nacional de Ciência e Tecnologia em Salinidade (INCTSal/CNPq), Universidade Federal do Ceará, CP 6039, 60440-970, Fortaleza, Ceará, Brazil aut NATIONALLICENCE 700 1- de Abreu Carlos Departamento de Bioquímica e Biologia Molecular and Instituto Nacional de Ciência e Tecnologia em Salinidade (INCTSal/CNPq), Universidade Federal do Ceará, CP 6039, 60440-970, Fortaleza, Ceará, Brazil aut NATIONALLICENCE 700 1- Prisco José Departamento de Bioquímica e Biologia Molecular and Instituto Nacional de Ciência e Tecnologia em Salinidade (INCTSal/CNPq), Universidade Federal do Ceará, CP 6039, 60440-970, Fortaleza, Ceará, Brazil aut NATIONALLICENCE 700 1- Gomes-Filho Enéas Departamento de Bioquímica e Biologia Molecular and Instituto Nacional de Ciência e Tecnologia em Salinidade (INCTSal/CNPq), Universidade Federal do Ceará, CP 6039, 60440-970, Fortaleza, Ceará, Brazil aut NATIONALLICENCE 773 0- Plant Growth Regulation Springer Netherlands 65/1(2011-09-01), 55-63 0167-6903 65:1<55 2011 65 10725 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer