Chlorophyll fluorescence technique as a rapid tool for in vitro screening of olive cultivars (Olea europaea L.) tolerant to drought stress

Faraloni, Cecilia; Cutino, Ilaria; Petruccelli, R.; Leva, A. R.; Lazzeri, S.; Torzillo, Giuseppe

doi:10.1016/j.envexpbot.2010.10.011

Cited by 88 publications

(60 citation statements)

References 32 publications

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“…Chlorophyll fluorescence parameters provide a quick and accurate technique for quantifying the ability of individual species to tolerate water stress. According to previous studies, there is a strong correlation between chlorophyll fluorescence and environmental stress tolerance, and these can serve as reliable indicators of how well a plant is coping with stress (Faraloni et al, 2011;Mishra et al, 2012). However, remarkable resistance of the photosynthetic apparatus to water shortages has been reported; a 30% leaf water deficit has been estimated as the limit above which photosynthetic biochemistry is significantly affected (Cornic et al, 1992;Cornic and Fresneau, 2002).…”

Section: Growth Parametersmentioning

confidence: 99%

Effect of drought stress on oxidative damage and antioxidant enzyme activity in melon seedlings

Kavas¹,

Baloğlu²,

Akça³

et al. 2013

Turk J Biol

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IntroductionMelon (Cucumis melo L.), an annual diploid plant, is an economically important horticultural crop grown in temperate, subtropical, and tropical regions worldwide. With a total production of 1.7 million tons, Turkey was the second biggest producer after China in 2009. Like many other fruits melon fruits provide a good source of potassium and vitamin C. They are also fat and cholesterol free, high in water content, and are relatively low in calories. Moreover, melons may have an anticlotting action and are also thought to lower cancer and heart disease risk (Lester, 1996).Biotic and abiotic stresses are the most important factors that severely limit plant growth and metabolism (Makbul et al., 2011). Abiotic stress is the primary cause of crop loss worldwide, reducing average yields for most major crop plants by more than 50% (Bray et al., 2000). Moreover, when the usable areas on the earth are classified in view of stress factors, drought stress is one of the most widespread environmental stresses (Arora et al., 2002;Saruhan Güler et al., 2012). Although each stress factor produces its own specific effect on plants, in general all stress conditions can cause an increase in reactive oxygen species (ROS). ROS are recognized as detrimental to biological systems because they cause the oxidation of lipids, proteins, deoxyribonucleic acid, and carbohydrates. Ultimately, toxic levels of ROS cause a chain reaction of cellular oxidation, which results in unhealthy situations and lethality. In addition to the oxidative stress related production, ROS are an inevitable outcome of normal physiological processes, such as glycolysis and photosynthesis (Mittler et al., 2004). Plant antioxidant systems, both enzymatic and nonenzymatic, play an important role in balancing and preventing oxidative damage (Foyer et al., 1994;Baysal Furtana and Tıpırdamaz, 2010). Nonenzymatic antioxidant metabolites include anthocyanin, flavonoids, carotenoids, α-tocopherol, ascorbate (AsA), and reduced glutathione (GSH) (Halliwell, 1987); enzymatic antioxidants consist of superoxide dismutase (

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Section: Growth Parametersmentioning

confidence: 99%

Effect of drought stress on oxidative damage and antioxidant enzyme activity in melon seedlings

Kavas¹,

Baloğlu²,

Akça³

et al. 2013

Turk J Biol

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“…Overall, our results suggested that stay green maize had higher photosynthetic capability than non-stay green maize under drought conditions. Chlorophyll fluorescence has been noted as a critical indicator of photosynthetic performance in plants (Zhang, 1999) and was widely utilized for determining the performance and viability of plants in response to drought (e.g., Faraloni et al, 2011;Mishra et al, 2012). In our study, Fv/Fm, qL and ETR were decreased under .83** ABA, abscisic acid; ZR, zeatin riboside; Chl, chlorophyll content; Pn, photosynthetic rate; Gs, stomatal conductance; Fo, PS-II original fluorescence; Fv/Fm, maximal PS-II photochemical efficiency; qL, photochemical quenching; ETR, electron transport rate **, significant at 0.01 probability level; *, significant at 0.05 probability level drought stress, indicating that drought stress inhibited the photochemical activity of PS II (Fig.…”

Section: Discussionmentioning

confidence: 99%

Involvement of Endogenous Abscisic acid and Cytokinin in Photosynthetic Performance of Different Stay Green Inbred Lines of Maize under Drought

Zhou¹,

Wang²,

Wang³

et al. 2016

IJAB

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Stay green, a characteristic of delaying leaf senescence, is desirable for maintaining photosynthetic activities, particularly under drought conditions. This study investigated the endogenous abscisic acid (ABA) and cytokinin (CTK) in maize plants and their potential relations with photosynthetic activities during late growth stage under drought stress. Two maize inbred lines, including stay green inbred line (Dan598) and non-stay green inbred line (Huangzao4), were planted in pots. Plants were treated with non-drought stress (75-80% of the field moisture capacity) and drought stress (45-50% of the field moisture capacity), which were maintained by using soil moisture sensor at anthesis or grain filling stage, respectively. The green leaf area per plant, chlorophyll contents (Chl), photosynthetic rate (Pn), and stomatal conductance (Gs) of Huangzao4 decreased more considerably compared to those of Dan598 under drought stress. Maize plants with stay green had greater photosynthetic performance than non-stay green under drought conditions. In addition, chlorophyll fluorescence parameters including maximal photochemical efficiency (Fv/Fm), photochemical quenching (qL), and electron transport rate (ETR) of both maize inbred lines had the same decreasing trend as compared to their respective Pn. Drought reduced photosystem Ⅱ (PSⅡ) original fluorescence (Fo) in Dan598 but increased Fo in Huangzao4. Drought stress had substantially increased ABA but reduced zeatin riboside (ZR) contents in the leaves and roots. Moreover, ABA content was negatively correlated with Pn, while ZR and ZR/ABA were positively correlated with Chl, Pn, Gs, Fv/Fm, qL, and ETR. Overall, the results suggested that both ABA and CTK were involved in controlling photosynthetic performance, and greater photosynthetic activity of stay green maize could be attributed to higher ZR and ZR/ABA when subjected to drought.

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“…Photoinhibition is enhanced under environmental stresses through the excessive reduction of plastoquinone (PQ) due to the suppression of energy use for carbon fixation (Tambussi et al, 2000;Murata et al, 2007). Faraloni et al (2011) used chlorophyll fluorescence as a rapid tool to screen olive cultivars tolerant to drought stress, selecting high-F v /F m cultivars as drought tolerant, and indicated that the tolerant cultivars maintain a high leaf water content under in vivo drought stress. The high correlation between F v /F m and MSI observed in this study (Fig.…”

Section: Discussionmentioning

confidence: 99%

Genotypic Diversity of Cross-Tolerance to Oxidative and Drought Stresses in Rice Seedlings Evaluated by the Maximum Quantum Yield of Photosystem II and Membrane Stability

Iseki

Homma

Endo

et al. 2013

Plant Production Science

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Chlorophyll fluorescence technique as a rapid tool for in vitro screening of olive cultivars (Olea europaea L.) tolerant to drought stress

Cited by 88 publications

References 32 publications

Effect of drought stress on oxidative damage and antioxidant enzyme activity in melon seedlings

Effect of drought stress on oxidative damage and antioxidant enzyme activity in melon seedlings

Involvement of Endogenous Abscisic acid and Cytokinin in Photosynthetic Performance of Different Stay Green Inbred Lines of Maize under Drought

Genotypic Diversity of Cross-Tolerance to Oxidative and Drought Stresses in Rice Seedlings Evaluated by the Maximum Quantum Yield of Photosystem II and Membrane Stability

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