Screening and Selection of Twenty Iranian Wheatgrass Genotypes for Tolerance to Salinity Stress during Seed Germination and Seedling Growth Stage

Sheikh-Mohamadi, Mohamad-Hossein; Etemadi, Nematollah; Nikbakht, Ali; Farajpour, Mostafa; Arab, Mostafa; Majidi, Mohammad Mahdi

doi:10.21273/hortsci12103-17

Cited by 20 publications

(13 citation statements)

References 63 publications

(79 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Results indicated that selecting for the highest number of traits: roots, plumule and seedling length, and seed vigor could be beneficial for seed germination ability and salinity tolerance in A. desertorum accessions at the seedling stage under greenhouse conditions (Golparvar, 2011). Similar results were found by Sheikh-Mohamadi et al (2017); some of the genotypes revealed tolerance under high salinity stress, which in in accordance with the current study results of cluster analysis. The related results observed by Khajeh-Hosseini et al (2003) also agreed with the present results.…”

Section: Discussionsupporting

confidence: 92%

Genetic evaluation and characterization using cluster heat map to assess NaCl tolerance in tomato germplasm at the seedling stage

Rehman

Saeed

Yaseen

et al. 2019

Chil. j. agric. res.

View full text Add to dashboard Cite

Salinity is a serious problem that limits crop growth and yield. The present study used plotting to evaluate 25 tomato (Solanum lycopersicum L.) accessions for various morpho-physiological parameters at the seedling stage and identify significantly salt-tolerant tomato lines at three different salinity levels. The pot experiment had a completely randomized design with three replicates in a factorial arrangement under greenhouse conditions. Tomato plants were exposed to 0 (control), 8, and 12 dS m-1 as NaCl stress at the seedling stage. The morpho-physiological traits, such as root and shoot length, root/shoot ratio, number of leaves, fresh and dry shoot weight, fresh and dry root weight, leaf area, Na + and K + concentrations, K + /Na + ratio, and tolerance index, were recorded to examine salt tolerance. According to principal component analysis (PCA), there were six principal components (PCs) with Eigen values > 1 and 77.2% of total cumulative variability. The PC1 (24.3%) revealed the highest variability followed by PC2 (16.2%).

show abstract

Section: Discussionsupporting

confidence: 92%

Genetic evaluation and characterization using cluster heat map to assess NaCl tolerance in tomato germplasm at the seedling stage

Rehman

Saeed

Yaseen

et al. 2019

Chil. j. agric. res.

View full text Add to dashboard Cite

show abstract

“…The increase in GR activity ensures the modulation of the glutathione redox state, which increases the rate of NADPH oxidation to minimize the formation of ROS (Muscolo et al, 2013). Similar to the results of previous studies indicating an increase in GPX activity induced by salt stress in rice (Khan and Panda, 2008) and in wheatgrass (Sheikh-Mohamadi et al, 2017), P. equisetiforme shoots showed an increase of GPX activity under salinity, with the highest values at 300 mM and 400 mM NaCl. GPX decomposes H 2 O 2 to produce H 2 O and O 2 (Mehlhorn et al, 1996).…”

Section: Nosupporting

confidence: 82%

Changes in phenolic profile, soluble sugar, proline, and antioxidant enzyme activities of Polygonumequisetiforme in response to salinity

Boughalleb¹,

Abdellaoui²,

Mahmoudi³

et al. 2020

Turk J Bot

View full text Add to dashboard Cite

This study intended to focus on the effect of different levels of NaCl (0-400 mM, at regular intervals every 100 mM) on the growth, secondary metabolites, and antioxidant enzyme activities of Polygonum equisetiforme, a wild plant with medicinal and industrial uses, which often grows in harsh environmental conditions. Our results showed that biomass production significantly decreased with salinity, while the leaf relative water content declined only at high levels of NaCl concentration (300-400 mM). In contrast, these higher doses of salt resulted in a significant increase in malondialdehyde (MDA) content. Both proline and soluble sugar (e.g., fructose, glucose, and sucrose) contents were enhanced under saline conditions. The methanolic extracts of the shoots included 10 flavonoids and 9 phenolic acids. The total phenolic acids (TPA), total flavonoid compounds (TFC), and total phenolic compounds (TPC) increased with salinity, particularly at 300 mM NaCl. An increase in TPA resulted especially from an increase in quinic, gallic, and protocatechuic acids (phenolic compounds), followed by quercetin-3-O-galactoside, catechin, and epicatechin (flavonoid compounds). Superoxide dismutase (SOD) activity increased only at high salinity levels (>200 mM), while glutathione reductase (GR), guaiacol peroxidase (GPX), catalase (CAT), and ascorbate peroxidase (APX) activity increased with salinity level. A positive significant correlation between antioxidant DPPH and TPA, TFC, TPC, CAT, and APX suggests a vital protective role in controlling oxidative stress through the scavenging process. Consequently, our results indicated that P. equisetiforme shoots are rich in secondary metabolites, especially phenolic compounds with high potential antioxidant activities. It can be considered a salt-tolerant species able to survive at salinity levels up to 300 mM NaCl.

show abstract

“…The activities of superoxide dismutase (SOD), catalase (CAT), peroxidase (APX) and glutathione reductase (GR) were increased in Kentucky bluegrass and tall fescue under salt tress condition [32]. Similar results were observed in desert wheatgrass (Agropyron desertorum L.) and tall wheatgrass (Agropyron elongatum L.) [13,33]. The function of oxidant enzymes is to scavenge the ROS generated in plant cells.…”

Section: Salt Stressmentioning

confidence: 58%

Mechanisms of Environmental Stress Tolerance in Turfgrass

et al. 2020

View full text Add to dashboard Cite

Turfgrasses constitute a vital part of the landscape ecological systems for sports fields, golf courses, home lawns and parks. However, turfgrass species are affected by numerous abiotic stresses include salinity, heat, cold, drought, waterlogging and heavy metals and biotic stresses such as diseases and pests. Harsh environmental conditions may result in growth inhibition, damage in cell structure and metabolic dysfunction. Hence, to survive the capricious environment, turfgrass species have evolved various adaptive strategies. For example, they can expel phytotoxic matters; increase activities of stress response related enzymes and regulate expression of the genes. Simultaneously, some phytohormones and signal molecules can be exploited to improve the stress tolerance in turfgrass. Generally, the mechanisms of the adaptive strategies are integrated but not necessarily the same. Recently, metabolomic, proteomic and transcriptomic analyses have revealed plenty of stress response related metabolites, proteins and genes in turfgrass. Therefore, the regulation mechanism of turfgrass’s response to abiotic and biotic stresses was further understood. However, the specific or broad-spectrum related genes that may improve stress tolerance remain to be further identified. Understanding stress response in turfgrass species will contribute to improve stress tolerance of turfgrass.

show abstract

Screening and Selection of Twenty Iranian Wheatgrass Genotypes for Tolerance to Salinity Stress during Seed Germination and Seedling Growth Stage

Cited by 20 publications

References 63 publications

Genetic evaluation and characterization using cluster heat map to assess NaCl tolerance in tomato germplasm at the seedling stage

Genetic evaluation and characterization using cluster heat map to assess NaCl tolerance in tomato germplasm at the seedling stage

Changes in phenolic profile, soluble sugar, proline, and antioxidant enzyme activities of Polygonumequisetiforme in response to salinity

Mechanisms of Environmental Stress Tolerance in Turfgrass

Contact Info

Product

Resources

About