caa a22 4500 463160711 CHVBK 20180406164746.0 cr unu---uuuuu 170326e20070601xx s 000 0 eng 10.1007/s10535-007-0080-2 doi (NATIONALLICENCE)springer-10.1007/s10535-007-0080-2 Low night temperature effects on photosynthetic performance on two grapevine genotypes [Elektronische Daten] [M. Bertamini, L. Zulini, K. Muthuchelian, N. Nedunchezhian] The functional activities of the photosynthetic apparatus of two grapevine genotypes (Vitis vinifera L. cvs. Müller-Thurgau and Lagrein) were investigated after low night temperature (LNT) treatment for 7 d. LNT caused important reductions of the net photosynthetic rate (PN) of Lagrein plants due to non-stomatal components. These non-stomatal effects were not evident in Müller-Thurgau. At LNT treatment, the contents of photosynthetic pigments decreased significantly in Lagrein, but in Müller-Thurgau the contents of chlorophyll (Chl) remained unchanged whereas the contents of carotenoids (Car) increased. An increase and decrease of Chl a/b was shown in Mü ller-Thurgau and Lagrein stressed plants, respectively. RuBPC activity and content of soluble proteins were also significantly reduced in Lagrein. Under LNT treatment, photosystem (PS) 2 was markedly more inhibited in Lagrein than in Müller-Thurgau. The decrease in PS 2 activity in Lagrein was mostly due to the marked loss of D1, 47, 43, 33, 28-25, 23 and 17 kDa proteins determined by immunological and SDS-PAGE studies. Institute of Experimental Botany, ASCR, 2007 carotenoids nationallicence chlorophyll fluorescence nationallicence electron transport nationallicence RuBPC nationallicence Car : carotenoids nationallicence Chl : chlorophyll nationallicence DCBQ : 2,6-dichloro-p-benzoquinone nationallicence F0 : minimal fluorescence nationallicence Fm : maximum fluorescence nationallicence Fv : variable fluorescence nationallicence gs : stomatal conductance nationallicence LNT : low night temperature nationallicence MV : methyl viologen nationallicence PN : net photosynthetic rate nationallicence PS : photosystem nationallicence ΦPS 2 : efficiency of open reaction center in light nationallicence RuBPC : ribulose-1,5-bisphosphate carboxylase nationallicence Bertamini M. Agricultural Resources Department, IASMA Research Center, via E. Mach, I-38010, San Michele all'Adige, Italy aut Zulini L. Agricultural Resources Department, IASMA Research Center, via E. Mach, I-38010, San Michele all'Adige, Italy aut Muthuchelian K. School of Energy, Environment and Natural Resources, Madurai Kamaraj University, 625021, Madurai, India aut Nedunchezhian N. Agricultural Resources Department, IASMA Research Center, via E. Mach, I-38010, San Michele all'Adige, Italy aut Biologia Plantarum Kluwer Academic Publishers-Consultants Bureau 51/2(2007-06-01), 381-385 0006-3134 51:2<381 2007 51 10535 https://doi.org/10.1007/s10535-007-0080-2 text/html Onlinezugriff via DOI 1 brief-communication jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10535-007-0080-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bertamini M. Agricultural Resources Department, IASMA Research Center, via E. Mach, I-38010, San Michele all'Adige, Italy aut NATIONALLICENCE 700 1- Zulini L. Agricultural Resources Department, IASMA Research Center, via E. Mach, I-38010, San Michele all'Adige, Italy aut NATIONALLICENCE 700 1- Muthuchelian K. School of Energy, Environment and Natural Resources, Madurai Kamaraj University, 625021, Madurai, India aut NATIONALLICENCE 700 1- Nedunchezhian N. Agricultural Resources Department, IASMA Research Center, via E. Mach, I-38010, San Michele all'Adige, Italy aut NATIONALLICENCE 773 0- Biologia Plantarum Kluwer Academic Publishers-Consultants Bureau 51/2(2007-06-01), 381-385 0006-3134 51:2<381 2007 51 10535 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer