Zahra Shirazi; Mahsa Rostami; Abozar Ghorbani
Abstract
Here, we evaluated how GolS and RfS gene families can potentially assist with grapevine drought tolerance. Through comprehensive bioinformatics analysis, we identified a set of putative genes associated with drought response in grapes. The analysis revealed the conservation of key functional domains ...
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Here, we evaluated how GolS and RfS gene families can potentially assist with grapevine drought tolerance. Through comprehensive bioinformatics analysis, we identified a set of putative genes associated with drought response in grapes. The analysis revealed the conservation of key functional domains and conserved motifs within the gene sequences, suggesting their potential involvement in stress adaptation. Additionally, we performed expression analysis of the identified genes under drought stress conditions. Accordingly, the results indicated substantial up-regulation levels in several genes, suggesting their potential importance in how grapevines respond to water scarcity. We explored the co expression network of these genes and identified possible interactions and regulatory relationships. The findings provided valuable information on complex regulatory mechanisms underlying drought-response in grapevines. The results bear implications for the genetic improvement of grape varieties, particularly in enhancing drought tolerance. By understanding the genetic basis of the droughtresponse mechanism, we can develop targeted strategies to improve crop management and assist in future attempts to breed grape varieties, emphasizing an enhanced tolerance to water deficits. This study sheds light on the potential roles of the GolS and RfS gene families in grapevine drought tolerance. The findings underscore the importance of genetic adaptation in grapevines to drought stress conditions. The knowledge herein can guide future research and breeding efforts to develop drought-tolerant grape varieties, ultimately contributing to the sustainability of grape production and the agricultural industry.
Shiva Zaferanchi; Saeid Zehtab Salmasi; Seyed Yahya Salehi Lisar; Mohammad Reza Sarikhani
Abstract
The present study was carried out to investigate biochemical responses of marigold (Calendula officinalis L.) to Bio-organic fertilizers. Effects of co-inoculation of two plant growth-promoting rhizobacteria (PGPR) (Azotobacter sp.145PI and Azospirillum sp.AC49I), humic acid (HA) (10 kg ha−1), ...
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The present study was carried out to investigate biochemical responses of marigold (Calendula officinalis L.) to Bio-organic fertilizers. Effects of co-inoculation of two plant growth-promoting rhizobacteria (PGPR) (Azotobacter sp.145PI and Azospirillum sp.AC49I), humic acid (HA) (10 kg ha−1), vermicompost (VC) (7 T ha−1) and combinations of these treatments were evaluated in two marigold cultivars [Isfahan double flower (DF) and single flower (SF)]. The biosynthesis of leaf protein, soluble and insoluble carbohydrate contents were increased in treated plants, while total free amino acid content was not influenced by treatments. Fertilizers also had positive impact on leaf and flower pigments, total flavonoid content, and total phenolic contents. Maximum amounts of anthocyanins were obtained in the DF cultivar treated by VC+PGPR and VC, which were 11.414 and 11.192 µmol g-1 FW, respectively. The SF cultivar treated by PGPR (36.11 %) and also the same cultivar treated by VC (33.39 %) had the highest antioxidant activities. In general, simultaneous application of fertilizers and also vermicompost were recognized as the best treatment for marigold plants. In conclusion, the findings of the current study confirmed that chemical composition and antioxidant activity of marigold can be positively influenced by Bio-organic fertilizers; therefore they can be used to obtain medicinal plants with improved quality during sustainable agricultural practices.
