Gas exchange and water relations of three Vitis vinifera L. cultivars growing under Mediterranean climate

2007 ◽  
Vol 45 (2) ◽  
Author(s):  
J. Moutinho-Pereira ◽  
N. Magalhaes ◽  
B. Goncalves ◽  
E. Bacelar ◽  
M. Brito ◽  
...  
Keyword(s):  
Gas Exchange ◽  
Vitis Vinifera ◽  
Water Relations ◽  
Mediterranean Climate ◽  
Vitis Vinifera L

scholarly journals Recovery of Vitis vinifera L. cv. ‘Kékfrankos’ from ‘bois noir’ disease

2019 ◽  
Vol 156 (3) ◽  
pp. 987-991
Author(s):  
Anikó Mátai ◽  
Péter Teszlák ◽  
Gábor Jakab
Keyword(s):  
Gas Exchange ◽  
Vitis Vinifera ◽  
Photosynthetic Performance ◽  
Photochemical Quenching ◽  
Vitis Vinifera L ◽  
Bois Noir ◽  
Flavescence Dorée ◽  
Exchange Performance ◽  
Concentration Changes ◽  
Non Photochemical Quenching

AbstractInvestigation of diseases caused by phytoplasmas, a group of cell-wall-less gram-positive bacteria has received significant attention in plant pathology. Grapevine is a host of two, genetically distinct phytoplasmas: Line Flavescence dorée (FD) phytoplasma associated to ‘flavescence dorée’ and ‘Candidatus Phytoplasma solani’ responsible for ‘bois noir’ (BN) disease. In the current study, we focused on BN diseased grapevines (Vitis vinifera L. cv. ‘Kékfrankos’), measured their photosynthetic performance and leaf hydrogen peroxide (H2O2) concentration. The latter is generally considered as a key molecule in the process of ‘recovery’ which is a spontaneous and unpredictable long-term remission of disease symptoms. This phenomenon also occurred during the time of our experiment. Infection resulted in reduced gas exchange performance and maximum quantum efficiency of PSII with an increased regulated non-photochemical quenching of PSII and H2O2 concentration. Changes in gas exchange seem to be a systemic response, while reduced photochemistry is a local response to ‘Ca. P. solani’ infection. H2O2 accumulation in BN phytoplasma infected plants, unlike in FD disease, was found to be a typical response to the appearance of a biotic stressor.

The Effect of Downy and Powdery Mildew on Grapevine (Vitis vinifera L.) Leaf Gas Exchange

2005 ◽  
Vol 153 (6) ◽  
pp. 350-357 ◽  
Author(s):  
M. Moriondo ◽  
S. Orlandini ◽  
A. Giuntoli ◽  
M. Bindi
Keyword(s):  
Gas Exchange ◽  
Powdery Mildew ◽  
Vitis Vinifera ◽  
Leaf Gas Exchange ◽  
Vitis Vinifera L

Whole-plant transpiration efficiency of Sultana grapevine grown under saline conditions is increased through the use of a Cl - -excluding rootstock

2003 ◽  
Vol 30 (6) ◽  
pp. 643 ◽  
Author(s):  
Mark R. Gibberd ◽  
Rob R. Walker ◽  
Anthony G. Condon
Keyword(s):  
Gas Exchange ◽  
Vitis Vinifera ◽  
Carbon Isotope Discrimination ◽  
Compatible Solutes ◽  
Energy Requirements ◽  
Vitis Vinifera L ◽  
Transpiration Efficiency ◽  
Crop Species ◽  
Ion Partitioning ◽  
Whole Plant

The aim of this study was to test the influence of salinity (1, 20, 40 and 80 mol m–3) on the transpiration efficiency (W = biomass / water transpired), lamina gas exchange and carbon isotope discrimination (Δ) of grapevine (Vitis vinifera L. cv. Sultana) grown on own roots or grafted to a Cl–-excluding rootstock (Ramsey; Vitis champini�L.). Growth of own-rooted and Ramsey-rooted vines irrigated with a salinity of 40 mol m–3 was reduced by 55 and 12%, respectively, compared with vines irrigated with 1 mol m–3. At 1 mol m–3 W of Ramsey-rooted vines was 1.3-fold higher than own-rooted vines (3.9 and 3.0 g L–1, respectively). Salinity resulted in a decrease in W of own-rooted vines (31% reduction at both 40 and 80 mol m–3). In contrast, W of Ramsey-rooted vines increased by up to 1.25-fold under saline conditions. Consequently, at 80 mol m–3 W of Ramsey-rooted vines was 2-fold higher than own-rooted vines. To our knowledge this is the first demonstration of the potential of a rootstock to increase W of a crop species under saline conditions. The rootstock-dependent differences in grapevine W under saline conditions were not determined by differences in lamina gas exchange. Differences in W associated with rootstock may be attributed to differences in ion uptake and the energy requirements associated with ion partitioning and the formation of compatible solutes.

Extension of a Farquhar model for limitations of leaf photosynthesis induced by light environment, phenology and leaf age in grapevines (Vitis vinifera L. cvv. White Riesling and Zinfandel)

2003 ◽  
Vol 30 (6) ◽  
pp. 673 ◽  
Author(s):  
Hans R. Schultz
Keyword(s):  
Stomatal Conductance ◽  
Gas Exchange ◽  
Vitis Vinifera ◽  
Leaf Age ◽  
Large Data ◽  
Co2 Assimilation ◽  
Vitis Vinifera L ◽  
Model Parameters ◽  
Data Set ◽  
Farquhar Model

Measurements of gas exchange and stomatal conductance were made on potted and field-grown grapevines (Vitis vinifera L.) on leaves from different light environments (sun and shade) at different phenological stages during the season to parameterise the Farquhar model. The model parameters for Rubisco activity (Vcmax), maximum electron transport rate (Jmax), and triose-phosphate utilisation (TPU) were estimated on the basis of a large data set (n = 105) of CO2 assimilation (A) versus internal CO2 pressure (Ci) curves. Leaf age was described with the leaf plastochron index (LPI). Stomatal coupling to photosynthesis was modelled with the Ball–Woodrow–Berry empirical model of stomatal conductance. Mature shade leaves had 35–40% lower values of Vcmax, Jmax and TPU than sun leaves. The difference between leaf types decreased at the end of the season. The ratio Jmax / Vcmax and values of day respiration (Rd) and CO2 compensation point in the absence of mitochondrial respiration (Γ*) varied little during the season and were independent of LPI. Validation of the model with independent diurnal data sets of measurements of gas exchange and stomatal conductance at ambient CO2 concentrations for three days between June and October, covering a large range of environmental conditions, showed good agreement between measured and simulated values.

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