Effects of Osmotic Drought Stress Induced by a Combination of NaCl and Polyethylene Glycol on Leaf Water Status, Photosynthetic Gas Exchange, and Water Use Efficiency of Pistacia khinjuk and P. mutica

Ranjbarfordoei, A.; Samson, Roeland; Lemeur, Raoul; Damme, Patrick Van

doi:10.1023/a:1021377103775

Cited by 23 publications

(4 citation statements)

References 18 publications

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“…The effects of salinity at the cellular level are the result of osmotic and ionic imbalance (Hasegawa et al, 2000;Hayashi and Murata, 1998;Joset et al, 1996;Muranaka et al, 2002aMuranaka et al, , 2002bMurphy and Durako, 2003;Ranjbarfordoei et al, 2002). The increase of Na + reduces the absorption and translocation of K + , Ca 2+ , and Mg 2+ (Ball et al, 1987;Hasegawa et al, 2000).…”

Section: Discussionmentioning

confidence: 99%

How Salinity Affects Co2 Fixation by Horticultural Crops

Mota-Cadenas¹,

Alcaraz‐López²,

Martínez-Ballesta³

et al. 2010

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It has been recognized widely that sequestration of atmospheric CO2 by terrestrial ecosystems can contribute significantly to the stabilization of atmospheric CO2. The carbon sequestration potential of crop lands should be considered as a modest but non-negligible contribution to climate change mitigation. Salinity is one of the most important environmental factors limiting crop production of marginal agricultural soils in many parts of the world. In our research, several physiological analyses were performed in atmospheric CO2, in daylight, both in normal conditions and with salinity (40 mm NaCl). Crops like melon or pepper showed significantly lower photosynthetic rates when they were grown in saline conditions. Also, the total chlorophyll content and carbon percentage were lower in the salinity-treated plants of these species. For lettuce, treated plants showed a significant decrease in photosynthetic rates and chlorophyll content, but there were no differences in carbon content. On the other hand, there were no significant differences in the values of total chlorophyll content, photosynthetic rate, or carbon content for tomato and watermelon plants when control and NaCl-treated plants were compared. The mineral composition data showed greater increases of sodium in both roots and leaves of melon and pepper when plants were treated with NaCl compared with the rest of the species. In conclusion, tomato and watermelon seem to be more efficient in CO2 fixation than the other crops of this experiment and this seems to be related to their greater salinity tolerance.

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Section: Discussionmentioning

confidence: 99%

How Salinity Affects Co2 Fixation by Horticultural Crops

Mota-Cadenas¹,

Alcaraz‐López²,

Martínez-Ballesta³

et al. 2010

horts

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“…WUE is a complex trait that is affected by many different plant parameters, such as photosynthesis, stomatal and mesophyll conductance, and canopy structure (Leakey et al, 2019), which together with the complexity of the field environment makes the artificial improvement of WUE a challenging task. In most of the studies performed in different crops subjected to a combination of different abiotic stresses, e.g., drought and heat (Pandey et al, 2021) and drought and salinity (Ranjbarfordoei et al, 2002), a decrease in WUE due to stomatal and non-stomatal limitations was observed (Pandey et al, 2021). Water-use efficiency is also affected by the carboxylation pathway utilized by the plant.…”

Section: Water-and Nutrient-use Efficiency Under Abiotic Stress Combinationmentioning

confidence: 99%

Developing climate‐resilient crops: improving plant tolerance to stress combination

et al. 2021

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Global warming and climate change are driving an alarming increase in the frequency and intensity of different abiotic stresses, such as droughts, heat waves, cold snaps, and flooding, negatively affecting crop yields and causing food shortages. Climate change is also altering the composition and behavior of different insect and pathogen populations adding to yield losses worldwide. Additional constraints to agriculture are caused by the increasing amounts of human-generated pollutants, as well as the negative impact of climate change on soil microbiomes. Although in the laboratory, we are trained to study the impact of individual stress conditions on plants, in the field many stresses, pollutants, and pests could simultaneously or sequentially affect plants, causing conditions of stress combination. Because climate change is expected to increase the frequency and intensity of such stress combination events (e.g., heat waves combined with drought, flooding, or other abiotic stresses, pollutants, and/or pathogens), a concentrated effort is needed to study how stress combination is affecting crops. This need is particularly critical, as many studies have shown that the response of plants to stress combination is unique and cannot be predicted from simply studying each of the different stresses that are part of the stress combination. Strategies to enhance crop tolerance to a particular stress may therefore fail to enhance tolerance to this specific stress, when combined with other factors. Here we review recent studies of stress combinations in different plants and propose new approaches and avenues for the development of stress combination-and climate change-resilient crops.

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“…The negative impact of salt stress is possible to see at all plant levels in almost all growth stages, including seedling, germination, maturity and herbal stages. Although salinity causes ionic and osmotic stress, it causes ionic imbalances that may induce potassium deficiency and may impair the selectivity of root membranes (Muranaka et al, 2002a, b;Ranjbarfordoei et al, 2002).…”

Section: Physiologic and Cytogenetic Effects Of Grape Seed Extract Unmentioning

confidence: 99%

“…Although salinity causes ionic and osmotic stress, it causes ionic imbalances that may induce potassium deficiency and may impair the selectivity of root membranes (Muranaka et al, 2002a, b;Ranjbarfordoei et al, 2002).…”

Section: Physiologic and Cytogenetic Effects Of Grape Seed Extract Under Saline Conditionsmentioning

confidence: 99%

Cytogenetic and Physiologic Efficacies of Grape Seed Extract in Allium cepa L. Seeds Exposed to Salinity

Çavuşoğlu

2019

Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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In this study, effects of grape seed extract (GSE) on the seedling growth (fresh weight, radicle length, radicle number), seed germination, mitotic activity, chromosomal aberrations (CAs) and micronucleus frequency (MN) in Allium cepa L. seeds germinated in both saline and normal conditions investigated. In only GSE medium, althought the radicle number and radicle length of seeds partially reduced compared to the control seeds germinated in distilled water medium, the fresh weight partly ascended and germination percentage indicate statistically the same value as the control. Besides, whereas the mitotic index in root-tip meristems of A. cepa seeds germinated in alone GSE medium showed increase compared to the control seeds, CA and MN showed statistically the same values compared to the control. On the other hand, salt stress significantly inhibited the seedling growth and seed germination of A. cepa. What's more, it reduced significantly the mitotic index in root-tip meristems of the seeds and escalated the number of CA and MN, which is the simplest indicator and the most effective of cytological damage. Contrariwise, inhibitive effects of salt on the mitotic activity, seedling growth, seed germination and CA significantly decreased with application of GSE but, GSE was inefficient in reducing of salt damage on MN.

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Effects of Osmotic Drought Stress Induced by a Combination of NaCl and Polyethylene Glycol on Leaf Water Status, Photosynthetic Gas Exchange, and Water Use Efficiency of Pistacia khinjuk and P. mutica

Cited by 23 publications

References 18 publications

How Salinity Affects Co2 Fixation by Horticultural Crops

How Salinity Affects Co2 Fixation by Horticultural Crops

Developing climate‐resilient crops: improving plant tolerance to stress combination

Cytogenetic and Physiologic Efficacies of Grape Seed Extract in Allium cepa L. Seeds Exposed to Salinity

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