Separate Effects of Sodium on Germination in Saline–Sodic and Alkaline Forms at Different Concentrations

Hitti, Yasmeen; MacPherson, Sarah; Lefsrud, Mark

doi:10.3390/plants12061234

Cited by 4 publications

(3 citation statements)

References 45 publications

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“…Alkaline stress has a significant impact on yield, plants, and fruit quality because it hinders the smooth uptake of nutrients [42]. The damage caused varies according to the type and phenological stage of the plant, time of exposure, and level of alkalinity of the medium; however, the main disorders are oxidative damage caused by alterations in ionic homeostasis and impairment of the photosynthetic process (Figure 2a) [43,44].…”

Section: Impact Of Alkalinity On Agricultural Crops and Fruit Qualitymentioning

confidence: 99%

Underlying Mechanisms of Action to Improve Plant Growth and Fruit Quality in Crops under Alkaline Stress

Pérez-Labrada,

Luis Espinoza-Acosta,

Bárcenas-Santana

et al. 2024

Abiotic Stress in Crop Plants - Ecophysiological Responses and Molecular Approaches

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The high content of carbonates (CO32−), bicarbonate (HCO3−), and high pH (>7.5) causes environmental pressure and alkaline stress, impairs plant growth and development, and limits fruit quality by causing osmotic alterations and hindering nutrient absorption. Because of alkaline stress, plants are in an oxidative environment that alters their metabolic processes, impairing their growth, development, and fruit quality. In response to this situation, plants use several mechanisms to cope, including the alteration of osmolytes, induction of transcription factors, signal transduction, hormone synthesis, alteration of the antioxidant system, and differential gene expression. Current knowledge and understanding of the underlying mechanisms that promote alkalinity tolerance in crops may lead to new production strategies to improve crop quality under these conditions, while ensuring food security.

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Section: Impact Of Alkalinity On Agricultural Crops and Fruit Qualitymentioning

confidence: 99%

Underlying Mechanisms of Action to Improve Plant Growth and Fruit Quality in Crops under Alkaline Stress

Pérez-Labrada,

Luis Espinoza-Acosta,

Bárcenas-Santana

et al. 2024

Abiotic Stress in Crop Plants - Ecophysiological Responses and Molecular Approaches

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“…In an approach used to evaluate the separate effects of sodium on the germination, early seedling viability, and biomass production of romaine lettuce (Lactuca sativa L.), tomato, beet (Beta vulgaris L.), and radish (Raphanus raphanistrum L.) in saline-sodic and alkaline forms at different concentrations, Hitti et al [12] reported that the electrical conductivity values were higher for the saline-sodic solutions than the alkaline solutions, yielding greater fresh mass per plant for all species, with the exception of beets grown in alkaline solution, with a value of 24 mM Na + . The fresh mass of romaine lettuce grown in 24 mM Na + saline-sodic solution was significantly greater than that of romaine lettuce grown in the alkaline solution with the same sodium concentration.…”

Section: Salt Stress and Tolerance Mechanisms In Plantsmentioning

confidence: 99%

Salinity Stress Tolerance in Plants

Trejo-Téllez

2023

Plants

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Soil salinization negatively impacts plant development and induces land degradation, thus affecting biodiversity, water quality, crop production, farmers’ well-being, and the economic situation in the affected region. Plant germination, growth, and productivity are vital processes impaired by salinity stress; thus, it is considered a serious threat to agriculture. The extent to which a plant is affected by salinity depends mainly on the species, but other factors, including soil attributes, water, and climatic conditions, also affect a plant’s ability to tolerate salinity stress. Unfortunately, this phenomenon is expected to be exacerbated further by climate change. Consequently, studies on salt stress tolerance in plants represent an important theme for the present Special Issue of Plants. The present Special Issue contains 14 original contributions that have documented novel discoveries regarding induced or natural variations in plant genotypes to cope with salt stress, including molecular biology, biochemistry, physiology, genetics, cell biology, modern omics, and bioinformatic approaches. This Special Issue also includes the impact of biostimulants on the biochemical, physiological, and molecular mechanisms of plants to deal with salt stress and on the effects of salinity on plant nutrient status. We expect that readers and academia will benefit from all the articles included in this Special Issue.

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“…HCO 3 − is an alkaline salt with strong stability in the environment. In HCO 3 − habitats, the physiological activities in plants are highly susceptible to disturbance [ 9 , 10 , 11 , 12 ]. On the one hand, under the effects of a high concentration of HCO 3 − , the growth and function of plant roots are inhibited, and the excessive accumulation of HCO 3 − in plants can also have toxic effects on plant cells, blocking cell metabolism [ 13 ]; on the other hand, the high pH induced by a high concentration of HCO 3 − will change the ionic environment of the soil around plant roots, and the precipitation of ions such as Fe 2+ and Mg 2+ in soil habitats will lead to the obstruction of plant photosynthetic pigment synthesis, further limiting plant growth and metabolic processes [ 14 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

Water Metabolism of Lonicera japonica and Parthenocissus quinquefolia in Response to Heterogeneous Simulated Rock Outcrop Habitats

Zhao

Xing

et al. 2023

Plants

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The karst carbon sink caused by rock outcrops results in enrichment of the bicarbonate in soil, affecting the physiological process of plants in an all-round way. Water is the basis of plant growth and metabolic activities. In heterogeneous rock outcrop habitats, the impact of bicarbonate enrichment on the intracellular water metabolism of plant leaf is still unclear, which needs to be revealed. In this paper, the Lonicera japonica and Parthenocissus quinquefolia plants were selected as experimental materials, and electrophysiological indices were used to study their water holding, transfer and use efficiency under three simulated rock outcrop habitats, i.e., rock/soil ratio as 1, 1/4 and 0. By synchronously determining and analyzing the leaf water content, photosynthetic and chlorophyll fluorescence parameters, the response characteristics of water metabolism within leaf cells to the heterogeneous rock outcrop habitats were revealed. The results showed that the soil bicarbonate content in rock outcrop habitats increased with increasing rock/soil ratio. Under the treatment of a higher concentration of bicarbonate, the leaf intra- and intercellular water acquisition and transfer efficiency as well as the photosynthetic utilization capacity of P. quinquefolia decreased, the leaf water content was lower, and those plants had low bicarbonate utilization efficiency, which greatly weakened their drought resistance. However, the Lonicera japonica had a high bicarbonate use capacity when facing the enrichment of bicarbonate within cells, the above-mentioned capacity could significantly improve the water status of the leaves, and the water content and intracellular water-holding capacity of plant leaves in large rock outcrop habitats were significantly better than in non-rock outcrop habitats. In addition, the higher intracellular water-holding capacity was likely to maintain the stability of the intra- and intercellular water environment, thus ensuring the full development of its photosynthetic metabolic capacity, and the stable intracellular water-use efficiency also made itself more vigorous under karstic drought. Taken together, the results suggested that the water metabolic traits of Lonicera japonica made it more adaptable to karst environments.

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Separate Effects of Sodium on Germination in Saline–Sodic and Alkaline Forms at Different Concentrations

Cited by 4 publications

References 45 publications

Underlying Mechanisms of Action to Improve Plant Growth and Fruit Quality in Crops under Alkaline Stress

Underlying Mechanisms of Action to Improve Plant Growth and Fruit Quality in Crops under Alkaline Stress

Salinity Stress Tolerance in Plants

Water Metabolism of Lonicera japonica and Parthenocissus quinquefolia in Response to Heterogeneous Simulated Rock Outcrop Habitats

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