Synergic effect of salinity and light-chilling on photosystem II photochemistry of the halophyte, Sarcocornia fruticosa

Redondo‐Gómez, Susana; Mateos‐Naranjo, Enrique; Figueroa, M.E.

doi:10.1016/j.jaridenv.2008.11.009

Cited by 8 publications

(6 citation statements)

References 18 publications

(18 reference statements)

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“…At midday, the reduction in F v /F m values indicated that G. flavum experienced slight reduction in PSII activity at the higher light flux. This reduction might have been caused by a lower proportion of open reaction centers (lower values of F m ) resulting from a saturation of photosynthesis by light (Redondo-Gómez et al 2009). However, bracts and rosette leaves showed optimal values for unstressed plants at dawn and midday (Björkman and Demmig 1987).…”

Section: Discussionmentioning

confidence: 99%

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Physiological characterization of photosynthesis, chloroplast ultrastructure, and nutrient content in bracts and rosette leaves from Glaucium flavum

Redondo‐Gómez¹,

Mateos‐Naranjo²,

Moreno³

2010

Photosynt.

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Glaucium flavum is a biennial plant that bears a rosette of leaves, producing a flower stalk, bracteate monochasium, in its second year. The aims of this work were both to investigate the contribution of bracts to gas-exchange activities in this species and to compare this contribution to that of rosette leaves. In addition, we investigated the extent to which its responses can be explained by chloroplast ultrastructure, as well as the possible role of nutrient concentrations in the physiological responses of both leaf types. Gas exchange and plant characteristics regarding chlorophyll fluorescence were examined in a field experiment; we also determined leaf relative water content, tissue concentrations of photosynthetic pigments, chloroplast ultrastructure and nutrient contents. Although bracts indeed contributed to gasexchange activities of G. flavum, rosette leaves showed higher values of net photosynthetic rate and stomatal conductance to CO 2 for photosynthetic photon flux density above 200 µmol m -2 s -1 . The incongruities in photosynthetic rates between bracts and leaves may be explained by the bigger chloroplasts of rosette leaves, which results in a larger membrane surface area. This agrees with the higher pigment concentrations and quantum efficiency of photosystem II values recorded as well for rosette leaves. On the other hand, bracts showed higher sodium concentrations, which could be a mechanism for salt tolerance of G. flavum.

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Section: Discussionmentioning

confidence: 99%

“…Lightand dark-adapted fluorescence parameters were measured at dawn (stable 50 µmol m -2 s -1 ambient light) and at midday (1600 µmol m -2 s -1 , Redondo-Gómez et al 2008).…”

Section: Plant Materialmentioning

confidence: 99%

Physiological characterization of photosynthesis, chloroplast ultrastructure, and nutrient content in bracts and rosette leaves from Glaucium flavum

Redondo‐Gómez¹,

Mateos‐Naranjo²,

Moreno³

2010

Photosynt.

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“…S1). Furthermore, S. fruticosa was used as a model plant to study the effect of salinity on photosynthesis (Redondo-Gómez et al, 2009), on oxidative stress (Gil et al, 2014) and solute partitioning (Marco et al, 2019). We investigated the combined effect of salinity and flooding on NSCs and AA in these two halophytes considering two different growing stages of plants, i.e.…”

Section: J O U R N a L P R E -P R O O Fmentioning

confidence: 99%

Evidence of non-structural carbohydrates-mediated response to flooding and salinity in Limonium narbonense and Salicornia fruticosa

et al. 2020

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“…The rate of metabolic disturbances and adaptability processes under salt stress differ depending on halophytic or glycophytic properties of species (Bankaji et al 2016 ; Bowman et al 2006 ; El-Haddad and Noaman 2001 ; Han et al 2012 ; Redondo-Gómez et al 2009 ). In the soils containing high concentrations of salt, water absorption by plant roots is limited (Zhang et al 2016 ).…”

Section: Introductionmentioning

confidence: 99%

Physiological Responses of Rosa rubiginosa to Saline Environment

Hura

Szewczyk-Taranek

Hura

et al. 2017

Water Air Soil Pollut

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The aim of this work was to analyse the response of Rosa rubiginosa to salinity induced by different concentrations of sodium chloride and calcium chloride (0, 25, 50, 100, 150 and 200 mM). Besides salt accumulation and pH changes, other parameters were investigated including photosynthetic activity, leaf water content, the dynamics of necrosis and chlorosis appearance and leaf drying. The study was complemented with microscopic analysis of changes in leaf anatomy. R. rubiginosa was more sensitive to the salinity induced by calcium chloride than by sodium chloride. Plant response to salinity differed depending of the salt concentration. These differences were manifested by higher dynamics of necrosis and chlorosis appearance and leaf drying. CaCl2 showed greater inhibition of the photosynthetic apparatus and photosynthetic activity. Treatment with CaCl2 caused more visible deformation of palisade cells, reduction in their density and overall reduction in leaf thickness. The study demonstrated higher accumulation of CaCl2 in the soil, and thus greater limitations in water availability resulting in reduced leaf water content and quicker drying of leaves as compared with NaCl-treated plants.Electronic supplementary materialThe online version of this article (doi:10.1007/s11270-017-3263-2) contains supplementary material, which is available to authorized users.

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Synergic effect of salinity and light-chilling on photosystem II photochemistry of the halophyte, Sarcocornia fruticosa

Cited by 8 publications

References 18 publications

Physiological characterization of photosynthesis, chloroplast ultrastructure, and nutrient content in bracts and rosette leaves from Glaucium flavum

Physiological characterization of photosynthesis, chloroplast ultrastructure, and nutrient content in bracts and rosette leaves from Glaucium flavum

Evidence of non-structural carbohydrates-mediated response to flooding and salinity in Limonium narbonense and Salicornia fruticosa

Physiological Responses of Rosa rubiginosa to Saline Environment

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