Photosynthetic response of drought‐ and salt‐stressed tomato and turnip rape plants to foliar‐applied glycinebetaine

Mäkelä, Pirjo; Kontturi, Markku; Pehu, Eija; Somersalo, Susanne

doi:10.1034/j.1399-3054.1999.105108.x

Cited by 91 publications

(47 citation statements)

References 25 publications

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“…However, the concerted action of disordered photochemistry and the visible damage to the photosynthetic apparatus probably led to the reduction in photosynthetic activity (Dubey 1997;Mäkela et al 1999). Our results indicate that NaCl first damaged the membranes of thylakoids (reduced number, swelling), which may finally cause the disturbance or inhibition of photochemical reactions.…”

Section: Indicated That a Littoralis Is A C 4 Poaceaementioning

confidence: 67%

“…Kerstiens et al (2002) showed that stomatal closure was induced by the presence of sodium ions in the apoplast surrounding the guard cells of Aster tripolium. Stomatal closure led to a reduction of photosynthesis (Seemann and Critchley 1985;Delfine et al 1998) by limiting the CO 2 entering into plant tissues (Mäkela et al 1999;Cornic 2000). The reduction of photosynthesis could potentially be due to a decrease in both stomatal conductance and mesophyll conductance.…”

Section: Discussionmentioning

confidence: 98%

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Salt impact on photosynthesis and leaf ultrastructure of Aeluropus littoralis

et al. 2007

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The effects of salinity (400 mM NaCl) on growth, biomass partitioning, photosynthesis, and leaf ultrastructure were studied in hydroponically grown plants of Aeluropus littoralis (Willd) Parl. NaCl produced a significant inhibition of the main growth parameters and a reduction in leaf gas exchange (e.g. decreased rates of photosynthesis and stomatal conductance). However, NaCl salinity affected neither the composition of photosynthesis pigments nor leaf water content. The reduction in leaf gas exchange seemed to correlate with a decrease in mesophyll thickness as well as a severe disorganisation of chloroplast structure, with misshapen chloroplasts and dilated thylakoid membranes. Conspicuously, mesophyll chloroplasts were more sensitive to salt treatment than those of bundle sheath cells. The effects of NaCl toxicity on leaf structure and ultrastructure and the associated physiological implications are discussed in relation to the degree of salt resistance of A. littoralis.

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Section: Indicated That a Littoralis Is A C 4 Poaceaementioning

confidence: 67%

Section: Discussionmentioning

confidence: 98%

Salt impact on photosynthesis and leaf ultrastructure of Aeluropus littoralis

et al. 2007

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“…Application of glycine betaine as a pre-sowing seed treatment was found to be ineffective in altering the gas exchange characteristics of wheat plants, although available reports are showing the positive effect of exogenously applied glycine betaine on different crops e.g., pea and turnip (Makela et al, 1998), tobacco (Ma et al, 2006) and tomato (Makela et al, 1999). Frommhold et al (1987) reported increased photosynthetic rates and decreased CO 2 compensation point in tobacco seedlings treated with thiourea.…”

Section: Physiological Parametersmentioning

confidence: 99%

Influence of seed hardening treatments on growth, gas exchange and yield parameters in black gram under drought condition

Narayanan

Prakash

Reka

2015

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The present investigations were carried out to study the influence of various seed hardening treatments on growth and yield parameters in black gram under drought condition. The black gram cv.VBN 3 was imposed with various seed hardening treatments (i.e.,) MnSO 4 @ 100 ppm, ZnSO 4 @ 100 ppm, Cobalt nitrate @ 1 %, Sodium molybdate @ 100 ppm, KCl @ 100 ppm, Pungam leaf extract @ 1 %, Prosopis leaf extract @ 1% and GA 3 @ 40 ppm. The above treated seeds along with control were evaluated for their seed quality parameters, growth, gas exchange and yield parameters under laboratory and drought field condition. The study revealed that seeds hardened with prosopis leaf extract @1% recorded higher seed yield, yield attributing characters and many seed quality characters as compared to other treatments and control under drought condition.

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“…Salinity may reduce gas exchange and chlorophyll (CHL) concentrations of wheat, and these responses are larger in salt-sensitive cultivars than in salt-resistant ones (CraftsBrandner et al, 1990;Makela et al, 1999;Lopez-Climent, 2008). Numerous studies have shown that salinity not only delays CHL biosynthesis, but it also accelerates the degradation of original CHL (Thind and Malik, 1988;Hernandez et al, 1995).…”

Section: Increased Gas Exchange and Chlorophyll Concentrationsmentioning

confidence: 99%

Responses of physiological parameters, grain yield, and grain quality to foliar application of potassium nitrate in two contrasting winter wheat cultivars under salinity stress

Zheng

Simmons

et al. 2010

Z. Pflanzenernähr. Bodenk.

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An experiment was conducted to test whether foliar application of KNO 3 on wheat in the heading stage could reduce salinity-induced injuries, produce high grain yield, and improve grain quality. Salt-resistant DK961 and salt-sensitive JN17 wheat cultivars under 0 or 100 mM-NaCl conditions were foliarly watered with distilled water or a 10 mM-KNO 3 solution. The four treatments included: T 1 (CK 1 ), 0 mM NaCl + distilled water; T 2 , 0 mM NaCl + 10 mM KNO 3 ; T 3 (CK 2 ), 100 mM NaCl + distilled water; T 4 , 100 mM NaCl + 10 mM KNO 3 . The results indicate that there were no differences (p > 0.05) in plant growth, grain yield, and grain quality between T 2 and T 1 in both cultivars, but these response variables were significantly lower in T 3 than in T 1 . K + : Na + ratio, chlorophyll content, photosynthetic capacity, grain yield, flour yield, water absorbance, ash content, dough-development time and dough-stability time were significantly higher in T 4 than in T 3 , while protein concentration, wet-gluten concentration, and antioxidant enzyme activities were lower. Although foliar application of KNO 3 on JN17 enhanced plant growth, grain yield, and grain quality, these parameters were still lower in T 4 than in T 1 . Our findings suggest that cultivating the salt-resistant wheat cultivar combined with foliar application of KNO 3 at heading stage may alleviate salinity injuries and produce higher grain yield and better grain quality under saline conditions.

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Photosynthetic response of drought‐ and salt‐stressed tomato and turnip rape plants to foliar‐applied glycinebetaine

Cited by 91 publications

References 25 publications

Salt impact on photosynthesis and leaf ultrastructure of Aeluropus littoralis

Salt impact on photosynthesis and leaf ultrastructure of Aeluropus littoralis

Influence of seed hardening treatments on growth, gas exchange and yield parameters in black gram under drought condition

Responses of physiological parameters, grain yield, and grain quality to foliar application of potassium nitrate in two contrasting winter wheat cultivars under salinity stress

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