Ameliorating effects of exogenous Ca2+ on foxtail millet seedlings under salt stress

Han, Fei; Sun, Meng; He, Wei; Cui, Xiumin; Pan, Hong; Wang, Hui; Song, Fupeng; Lou, Yanhong; Zhuge, Yuping

doi:10.1071/fp18314

Cited by 25 publications

(17 citation statements)

References 34 publications

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“…Ca 2+ -phospholipid signaling system communication regulates phospholipids, inositol, fatty acids, and ROS. It also maintains cellular osmotic equilibrium [75]. On the other hand, P is a critical component of biological substances such as nucleic acids, nucleotides, phospholipids, and phosphoproteins making it the most important plant growth macronutrient [76,77].…”

Section: Discussionmentioning

confidence: 99%

Mitigation of Salinity Stress Effects on Broad Bean Productivity Using Calcium Phosphate Nanoparticles Application

et al. 2022

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Water salinity is one of the major abiotic stresses, and the use of saline water for the agricultural sector will incur greater demand in the coming decades. Recently, nanoparticles (NPs) have been used for developing numerous plant fertilizers as a smart and powerful form of material with dual action that can alleviate the adverse effects of salinity and provide the plant with more efficient nutrient forms. This study evaluated the influence of calcium phosphate NPs (CaP-NPs) as a soil fertilizer application on the production and bioactive compounds of broad bean plants under salinity stress. Results showed that salinity had deleterious effects on plant yield with 55.9% reduction compared to control. On the other hand, CaP-NPs dramatically improved plant yield by 30% compared to conventional fertilizer under salinity stress. This improvement could be attributed to significantly higher enhancement in total soluble sugars, antioxidant enzymes, proline content, and total phenolics recorded use of nano-fertilizer compared to conventional use under salt stress. Additionally, nano-fertilizer reflected better mitigatory effects on plant growth parameters, photosynthetic pigments, and oxidative stress indicators (MDA and H2O2). Therefore, our results support the replacement of traditional fertilizers comprising Ca2+ or P with CaP-nano-fertilizers for higher plant productivity and sustainability under salt stress.

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Section: Discussionmentioning

confidence: 99%

Mitigation of Salinity Stress Effects on Broad Bean Productivity Using Calcium Phosphate Nanoparticles Application

et al. 2022

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“…For biomass, 10 seedlings were randomly selected, washed with distilled water, and weighed using a one hundred thousandth scale. For the chlorophyll content, the supernatant of the fresh leaf samples soaked in dimethyl sulfoxide under dark condition for 3 days was measured using a spectrophotometer at 663 and 645 nm [ 14 ]. For Na + and K + contents of the leaves, 0.1 g dry powder of leaf samples (≤0.25 mm) was digested with a mixture of concentrated HNO 3 and HClO 4 (2:1 V:V) at 370 °C for 3 h, and the contents were then determined via flame photometer (AP1500, AoPu, Shanghai, China) [ 14 , 65 ].…”

Section: Methodsmentioning

confidence: 99%

“…More importantly, foxtail millet has a suitable adaptive ability to change environmental conditions, especially under increasingly intensified land aridification. Foxtail millet has a great potential for salt tolerance due to its strong fibrous root system, high water utilization rate, strong drought tolerance, and salt tolerance potential [ 14 , 15 ]. Nahar et al [ 16 ] found that the salt tolerance of a foxtail millet accession could maintain higher dry matter and grain yield at 6 dS·m −1 salt level.…”

Section: Introductionmentioning

confidence: 99%

Transcriptome Analysis Reveals Molecular Mechanisms under Salt Stress in Leaves of Foxtail Millet (Setaria italica L.)

Han

Sun

et al. 2022

Plants

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Foxtail millet (Setaria italica L.) is an important cereal for managing future water scarcity and ensuring food security, due to its strong drought and salt stress resistance owing to its developed root system. However, the molecular responses of foxtail millet leaves to salt stress are largely unknown. In this study, seeds of 104 foxtail millet accessions were subjected to 0.17 mol·L−1 NaCl stress during germination, and various germination-related parameters were analyzed to derive 5 salt-sensitive accessions and 13 salt-tolerant accessions. Hong Gu 2000 and Pu Huang Yu were the most salt-tolerant and salt-sensitive accessions, respectively. To determine the mechanism of the salt stress response, transcriptomic differences between the control and salt-treated groups were investigated. We obtained 2019 and 736 differentially expressed genes under salt stress in the salt-sensitive and salt-tolerant accessions, respectively. The transcription factor families bHLH, WRKY, AP2/ERF, and MYB-MYC were found to play critical roles in foxtail millet’s response to salt stress. Additionally, the down-regulation of ribosomal protein-related genes causes stunted growth in the salt-sensitive accessions. The salt-tolerant accession alleviates salt stress by increasing energy production. Our findings provide novel insights into the molecular mechanism of foxtail millet’s response to salt stress.

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“…Foxtail millet [Setaria italica L.], a perennial C4 plant belonging to the family Poaceae (subfamily Panicoideae, tribe Paniceae), is recognised as a particularly important cereal and forage crop in arid and semi-arid regions (Han et al 2019). This ancient crop, originating from China, is grown worldwide owing to its high tolerance to drought and salinity (Werner et al 2005).…”

Section: Introductionmentioning

confidence: 99%

Genome-wide association mapping of agronomic and quality traits in foxtail millet

Lou

Chen

Cao³

et al. 2022

Preprint

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Foxtail millet [Setaria italica L.] is a particularly momentous cereal and forage crop in arid and semi-arid regions, and was recognised worldwide for its potential as a health-promoting functional food. An understanding of the genomic variation and alleles underpinning its agronomic and quality traits is important for improving foxtail millet breeding. Therefore, high-quality single nucleotide polymorphisms (SNPs) to perform a genome-wide association study (GWAS) was employed to better understand the diversity of foxtail millet and facilitate the genetic dissection of its key traits. Using genotyping-by-sequencing, 107 foxtail millet accessions were sequenced; further analysis revealed 72,181 high-quality SNPs, 46 of which were significantly associated with 13 agronomic and quality traits. These SNPs were distributed across the 8 chromosomes; 36 were located in intergenic regions, whereas 1 and 5 SNPs were located in exon and intron regions, respectively. The GWAS revealed that 28 SNPs were associated with a single trait (Peak time). For some of the significant SNPs, favourable genotypes showed pyramiding effects for several traits. The 46 loci identified in present study will therefore be helpful for breeding plans aimed at foxtail millet improvement. Overall, the results provide sufficient fundamental for excellent cultivar breeding in the sustainable development of foxtail millet.

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Ameliorating effects of exogenous Ca2+ on foxtail millet seedlings under salt stress

Cited by 25 publications

References 34 publications

Mitigation of Salinity Stress Effects on Broad Bean Productivity Using Calcium Phosphate Nanoparticles Application

Mitigation of Salinity Stress Effects on Broad Bean Productivity Using Calcium Phosphate Nanoparticles Application

Transcriptome Analysis Reveals Molecular Mechanisms under Salt Stress in Leaves of Foxtail Millet (Setaria italica L.)

Genome-wide association mapping of agronomic and quality traits in foxtail millet

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