Effect of potassium sulfate on quantitative and qualitative characteristics of canola cultivars upon late-season drought stress conditions

Farahani, Soheila; Heravan, E Majidi; Rad, Amir Hossein Shirani; Noormohammadi, Ghorban

doi:10.1080/01904167.2019.1628987

Cited by 23 publications

(6 citation statements)

References 13 publications

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“…The limiting role of K + in agriculture also warrants consideration. First, many studies [ 45 ] have reported substantial improvements in crops after an adequate application of K fertilizers via both a direct positive effect on crop production and indirect effects of increasing water-, N-, and P-use efficiencies, preventing disease, and managing stress responses to drought [ 265 , 266 , 267 ], frost [ 268 ], and salinity [ 269 , 270 , 271 ]. Second, the global demand for K fertilizer has increased in recent years [ 272 ]; only some countries, such as China and the USA, control most of the K + production, while several developing countries, such as India and other Asian countries with limited K + fertilization, are expected to drastically increase their consumption in the near future [ 272 ].…”

Section: K and Food Security And Human Healthmentioning

confidence: 99%

Potassium Control of Plant Functions: Ecological and Agricultural Implications

Sardans

Peñuelas

2021

Plants

197

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Potassium, mostly as a cation (K+), together with calcium (Ca2+) are the most abundant inorganic chemicals in plant cellular media, but they are rarely discussed. K+ is not a component of molecular or macromolecular plant structures, thus it is more difficult to link it to concrete metabolic pathways than nitrogen or phosphorus. Over the last two decades, many studies have reported on the role of K+ in several physiological functions, including controlling cellular growth and wood formation, xylem–phloem water content and movement, nutrient and metabolite transport, and stress responses. In this paper, we present an overview of contemporary findings associating K+ with various plant functions, emphasizing plant-mediated responses to environmental abiotic and biotic shifts and stresses by controlling transmembrane potentials and water, nutrient, and metabolite transport. These essential roles of K+ account for its high concentrations in the most active plant organs, such as leaves, and are consistent with the increasing number of ecological and agricultural studies that report K+ as a key element in the function and structure of terrestrial ecosystems, crop production, and global food security. We synthesized these roles from an integrated perspective, considering the metabolic and physiological functions of individual plants and their complex roles in terrestrial ecosystem functions and food security within the current context of ongoing global change. Thus, we provide a bridge between studies of K+ at the plant and ecological levels to ultimately claim that K+ should be considered at least at a level similar to N and P in terrestrial ecological studies.

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Section: K and Food Security And Human Healthmentioning

confidence: 99%

Potassium Control of Plant Functions: Ecological and Agricultural Implications

Sardans

Peñuelas

2021

Plants

197

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“…The availability of plant nutrients is crucial in drought stress adaptation and avoidance. Potassium (K), known as a stress alleviator plant nutrient, controls water losses from the plant ( Farahani et al., 2019 ), delays leaf chlorosis and senescence ( Weng et al., 2007 ), and mitigates the adverse consequences of drought stress by regulating the physio-biochemical characteristics ( Hafsi et al., 2014 ) such as activating enzymes, osmoregulation, and membrane transport in cotton ( Zahoor et al., 2017a ), corn ( Matłok et al., 2022 ), rice ( Weng et al., 2007 ), and oilseed ( Farahani et al., 2019 ). Drought increases ROS production by chloroplasts, peroxisomes, and mitochondria, and this could be further enhanced in K-deficient plants ( Kaushal and Wani, 2016 ).…”

Section: Introductionmentioning

confidence: 99%

Potassium application enhances drought tolerance in sesame by mitigating oxidative damage and regulating osmotic adjustment

et al. 2022

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Potassium (K) is known for alleviating the negative effects of abiotic stresses on plants. To explore the functions of K in controlling reactive oxygen species (ROS), antioxidant activities, and osmoregulation in sesame under drought stress, a pot experiment was conducted with three K levels (0, 60, and 120 kg ha–1, recorded as K0, K1, and K2, respectively) and exposed to well-watered (WW, 75% ± 5% soil relative water content) and drought-stressed (DS, 50% ± 5% soil relative water content) conditions. The results showed that DS stimulated the production of ROS such as increased hydrogen peroxide (H2O2), leading to lipid peroxidation as characterized by higher malondialdehyde (MDA) and, consequently, resulting in the decline in relative water content (RWC) and photosynthetic pigments as compared with WW plants. These adverse effects were exacerbated when drought stress was prolonged. Concurrently, K application alleviated the magnitude of decline in the RWC, chlorophyll a, and chlorophyll b, and plants applied with K exhibited superior growth, with the optimal mitigation observed under K2 treatment. Additionally, DS plants treated with K exhibited lower lipid peroxidation, higher antioxidant activities, and increased osmotic solute accumulation in comparison with plants under K deficiency, which suggested that exogenous K application mitigated the oxidative damages and this was more prominent under K2 treatment. Noteworthily, proline and soluble protein, respectively, dominated in the osmotic regulation at 3 and 6 days of drought stress according to the analysis of the quantitative comparison among different osmotically active solutes. Based on the correlation of the aforementioned traits and the analysis of variance on the interaction effects of drought stress and potassium, we propose that superoxide dismutase (SOD), glutathione reductase (GR), and MDA could be critical indicators in balancing ROS detoxification and reproduction. In summary, our studies suggest that optimized K application keeps a balance between the production of antioxidants and ROS and simultaneously affects osmoregulation to alleviate the damage from drought stress.

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“…Á.Löve & D.Löve and some Brassica carinata A.Braun cultivars, whereas some B. carinata cultivars reported a signi cant increase in glucosinolate accumulation 30,31 . Treatment of potassium sulfate during drought conditions on canola declined glucosinolate accumulation compared to the untreated plants 32 . Root tissue showed a few changes in the transcript abundance of SMs.…”

Section: Discussionmentioning

confidence: 81%

Comprehensive RNA-Seq-based study and metabolite profiling to identify genes involved in podophyllotoxin biosynthesis in Linum album Kotschy ex Boiss. (Linaceae)

Danaeipour

Garoosi

Tohidfar

et al. 2022

Preprint

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Linum album is a well-known rich source of anticancer compounds, i.e., podophyllotoxin (PTOX) and other lignans, which play an important role in the plant defensive system. In the present study, the RNA-Seq data of flax (L. usitatissimum) under aluminum toxicity, zinc and K+ deficiency, drought stress, ABA, and Fusarium treatments were analyzed to identify common DEGs and then examined in L. album, using HPLC and qRT-PCR. Commonly DEGs analysis identified EP3 with a significant increase in all stresses. The highest expression increase was found for laccase )LAC11(, lactoperoxidase )POD(, 4-coumarate-CoA ligase )4CL(, and secoisolariciresinol (SECO) dehydrogenase )SDH(. A quantitative expression showed that the SDH gene had an increasing trend in L. album root and its expression trend was different in the plant shoot. The gene expressions of deoxyPTOX synthase (2-ODD), excluding drought stress, and 5'-desmethyl-yatein O-methyltransferase (OMT1) revealed a rising trend. HPLC analysis confirmed the results of gene expression. SECO content increased under drought stress, and 6-metoxyPTOX content was more than PTOX in both tissues. Identified modifications of critical genes related to PTOX biosynthesis in response to multiple stresses can provide a baseline for improving PTOX content.

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Effect of potassium sulfate on quantitative and qualitative characteristics of canola cultivars upon late-season drought stress conditions

Cited by 23 publications

References 13 publications

Potassium Control of Plant Functions: Ecological and Agricultural Implications

Potassium Control of Plant Functions: Ecological and Agricultural Implications

Potassium application enhances drought tolerance in sesame by mitigating oxidative damage and regulating osmotic adjustment

Comprehensive RNA-Seq-based study and metabolite profiling to identify genes involved in podophyllotoxin biosynthesis in Linum album Kotschy ex Boiss. (Linaceae)

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