Growth and Photosynthetic Responses to Salinity of the Salt-marsh Shrub Atriplex portulacoides

Redondo‐Gómez, Susana; Mateos‐Naranjo, Enrique; Davy, A. J.; Fernández-Muñoz, Francisco; Castellanos, Eloy M.; Luque, Teresa; Figueroa, M.E.

doi:10.1093/aob/mcm119

Cited by 211 publications

(123 citation statements)

References 16 publications

Supporting

Mentioning

107

Contrasting

Order By: Relevance

“…On the contrary, Mm landrace F v /F m ratio indicates slightly lower photochemical efficiency of PSII that was not severely affected by high salinity levels. The decrease in F v /F m can be attributed to the downregulation of photosystem II activity and/or impairment of photochemical activity, which indicates damage in the functionality of the photosynthetic apparatus (Redondo-Gómez et al, 2007).…”

Section: Discussionmentioning

confidence: 99%

NaCl salinity affects germination, growth, physiology, and biochemistry of bambara groundnut

Ambede

Netondo

Mwai

et al. 2012

Braz. J. Plant Physiol.

View full text Add to dashboard Cite

The effects of NaCl salinity on seed germination, growth, physiology, and biochemistry of two bambara groundnut landraces (Vigna subterranea (L.) Verdc), Kakamega (white seed coat) and Mumias (red seed coat), were investigated with the aim of establishing traits, which can provide a basis for breeding to salt tolerance in groundnuts. A study was conducted under laboratorial and greenhouse conditions. Bambara groundnut seeds and plants were subjected to five concentrations of NaCl solutions with several electrical conductivities: 0 (control), 6.96, 12.93, 19.89, and 25.86 dS m -1 . Germination percentage, growth, chlorophyll fluorescence, and leaf chlorophyll content were determined. Sodium chloride salinity (p<0.05) significantly decreased germination and plant growth in both landraces. Mumias had significantly higher total chlorophyll, chlorophyll a and b content compared to Kakamega landrace. Salinity significantly decreased Fv/Fm ratio and electron transport rate in the two landraces, however there were no significant (p>0.05) differences in the Fv/Fm values for Mumias' landrace, as compared to the Control. Overall, Mumias' landrace seeds seemed to be more salt-tolerant at higher salinity levels compared to Kakamega. A greater reduction in growth in Mumias than in Kakamega is a possible indicator for salt tolerance. The chlorophyll fluorescence parameters may not be used to identify salt sensitivity between the two landraces. The results indicated that leaf area and seed germination were suitable parameters for screening the two bambara landraces for salt tolerance.

show abstract

Section: Discussionmentioning

confidence: 99%

NaCl salinity affects germination, growth, physiology, and biochemistry of bambara groundnut

Ambede

Netondo

Mwai

et al. 2012

Braz. J. Plant Physiol.

View full text Add to dashboard Cite

show abstract

“…The rate of photosynthetic CO 2 assimilation is generally reduced by salinity, partly due to a reduced stomatal conductance and consequent restriction of the availability of CO 2 for carboxylation, partly because of non-stomatal inhibition caused by direct effects of NaCl on photosynthetic apparatus (toxic effect; Flexas et al 2004;Redondo-Gómez et al 2007;Chaves et al 2009). The reduction in stomatal conductance also causes a decrease in transpiration rate (Gul et al 2001;Sharma et al 2005;Redondo-Gómez et al 2007) and, consequently, a reduction in the transpirational cooling effect with the increase of leaf and canopy temperature (Kluitenberg & Biggar 1992;Sharma et al 2005;Hackl et al 2012).…”

Section: Introductionmentioning

confidence: 99%

“…The reduction in stomatal conductance also causes a decrease in transpiration rate (Gul et al 2001;Sharma et al 2005;Redondo-Gómez et al 2007) and, consequently, a reduction in the transpirational cooling effect with the increase of leaf and canopy temperature (Kluitenberg & Biggar 1992;Sharma et al 2005;Hackl et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Kaolin influences tomato response to salinity: physiological aspects

Boari

Cucci

Donadio

et al. 2014

Acta Agriculturae Scandinavica, Section B — Soil & Plant Sc

View full text Add to dashboard Cite

Environmental stress as salinity can negatively affect the physiology of tomato plants. Conditions leading to a reduction of transpiration can contribute to greater tolerance to salinity. Use of kaolin-based particle film technology (PFT) may be an effective tool to control stomatal conductance and transpiration rate, thus mitigating the detrimental effect of salinity. The present three-year study has investigated the effects of kaolin application on leaf gas exchange, leaf water potential, leaf and canopy temperature of field-grown tomato, irrigated with brackish water by drip method, in southern Italy. Treatments were: (1) three salinity levels of irrigation water (electrical conductivity of water = 0.5, 5 and 10 dS m ); (2) tomato plants treated or not with kaolin; and (3) two cultivars in each year. The increase in salinity caused the reduction of leaf water potential, stomatal conductance, net photosynthesis and transpiration rate, and the increase of leaf and canopy temperature. Kaolin has resulted in an improvement of leaf water potential, and the reduction in gas exchange variables in low-salinity conditions. Under high salinity, kaolin was effective in limiting the reductions in net photosynthesis and reducing leaf and canopy temperature. These latter variables were slightly affected by kaolin, in different ways in respect to the saline treatments; while in non-saline conditions were 0.2-0.5°C higher in the kaolin-treated plants, the situation was reversed in more saline treatment. The variation of leaf and canopy temperature shows that kaolin influences the thermal balance mainly for the dual effect of reflection of the incident radiation and partial occlusion of the stomata. Kaolin mitigated detrimental effects of salinity also on yield, contributing to the improvement of income for the farmers. The use of kaolin-based PFT may be an effective tool to alleviate salinity stress in tomato production under arid and semi-arid conditions.

show abstract

“…In both salt-sensitive and salt-tolerant of Chickpea seedling the salt stress affect F V /F M , φ PSII , qP, F 0 , and F M (Eyidogan and Tufan, 2007). however, others authors reported that salinity does not affect chlorophyll fluorescence (Redondo-Gómez et al, 2007). Measurement of chlorophyll a fluorescence, a non-invasive method, is widely used for monitoring and screening different species and genotypes for stress resistance or tolerance (Percival et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Chlorophyll a fluorescence as indicative of the salt stress on Brassica napus L.

Bacarin

Deuner

Silva

et al. 2011

Braz. J. Plant Physiol.

View full text Add to dashboard Cite

The effects of salinity stress on chlorophyll fluorescence and the growth of Brassica napus L were investigated. The chlorophyll a fluorescence transient were recorded and analyzed according to the JIP-test which can quantify PSII performance. Salt stress resulted in decreased leaf area and dry matter compared with the control treatment (0 mM NaCl). The most pronounced effects of salt stress were observed with 200 mM NaCl, and the hybrids displayed different levels of sensitivity to stress. The Performance Index (PI ABS ) was the most sensitive parameter to salt stress, which suggests that this parameter can be used to screen genotypes for salt tolerance.Keywords: Canola; growth; JIP-Test, salt stress; spring rapessed oil.Abbreviations: ABS, absorption of light energy; Chl, chlorophyll; ET, conversion of excitation energy to electron transport (ET); ET o /ABS, electron transport activity; F 0 , F V , and F M -minimal, variable and maximum Chl fluorescence of PSII in the dark adapted state; F V /F M = φ Po = TR 0 /ABS, maximum efficiency of PSII photochemistry; F 0 ', F V ' and F M ' -minimal, variable and maximum Chl fluorescence in the light adapted state; F V '/F M ', efficiency of excitation capture by open PSII reaction centers; FW, fresh weight; PI ABS , Performance Index; PSII, photosystem II; Q A , electron acceptor of PSII; qP, photochemical quenching coefficient; RC/ABS, ratio of reaction centers and the absorbance; TR, trapping of excitation energy; φ PSII , actual PSII efficiency; φ Eo = ET 0 /ABS, quantum yield of electron transport; φ Do , quantum yield of dissipation; Ψ o = ET 0 /TR 0 , yield of electron transport per trapped exciton; PAR, photosynthetic active radiation.

show abstract

Growth and Photosynthetic Responses to Salinity of the Salt-marsh Shrub Atriplex portulacoides

Cited by 211 publications

References 16 publications

NaCl salinity affects germination, growth, physiology, and biochemistry of bambara groundnut

NaCl salinity affects germination, growth, physiology, and biochemistry of bambara groundnut

Kaolin influences tomato response to salinity: physiological aspects

Chlorophyll a fluorescence as indicative of the salt stress on Brassica napus L.

Contact Info

Product

Resources

About