Morpho-physiological Responses of Asparagus Accessions to Drought Stress Under Greenhouse Condition

Namaki, Atefeh; Ghahremani, Zahra; Aelaei, Mitra; Barzegar, Taher; Ranjbar, Mohamad Ebrahim

doi:10.1007/s10343-022-00667-6

Cited by 7 publications

(1 citation statement)

References 20 publications

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“…The water supply was stopped in the drought treatment group. Leaves were collected from the top half of the tallest stems and frozen in liquid nitrogen on day 12 after treatment, when the SWC of the drought treatment group was 25–28% [ 25 ]. The leaves were stored at − 80 °C, including samples collected from the ‘Pacific Early’ control group (PCK), the ‘Pacific Early’ drought stress treatment group (PDS), the ‘Jilv3’ control group (JCK), and the ‘Jilv3’ drought stress treatment group (JDS).…”

Section: Methodsmentioning

confidence: 99%

Integrated analysis of transcriptomics and metabolomics of garden asparagus (Asparagus officinalis L.) under drought stress

Zhang,

Han,

Wang

et al. 2024

BMC Plant Biol

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Background Drought is a leading environmental factor affecting plant growth. To explore the drought tolerance mechanism of asparagus, this study analyzed the responses of two asparagus varieties, namely, ‘Jilv3’ (drought tolerant) and ‘Pacific Early’ (drought sensitive), to drought stress using metabolomics and transcriptomics. Results In total, 2,567 and 7,187 differentially expressed genes (DEGs) were identified in ‘Pacific Early’ and ‘Jilv3’, respectively, by comparing the transcriptome expression patterns between the normal watering treatment and the drought stress treatment. These DEGs were significantly enriched in the amino acid biosynthesis, carbon metabolism, phenylpropanoid biosynthesis, and plant hormone signal transduction pathways. In ‘Jilv3’, DEGs were also enriched in the following energy metabolism-related pathways: citrate cycle (TCA cycle), glycolysis/gluconeogenesis, and pyruvate metabolism. This study also identified 112 and 254 differentially accumulated metabolites (DAMs) in ‘Pacific Early’ and ‘Jilv3’ under drought stress compared with normal watering, respectively. The amino acid, flavonoid, organic acid, and soluble sugar contents were more significantly enhanced in ‘Jilv3’ than in ‘Pacific Early’. According to the metabolome and transcriptome analysis, in ‘Jilv3’, the energy supply of the TCA cycle was improved, and flavonoid biosynthesis increased. As a result, its adaptability to drought stress improved. Conclusions These findings help to better reveal the molecular mechanism underlying how asparagus responds to drought stress and improve researchers’ ability to screen drought-tolerant asparagus varieties as well as breed new varieties.

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Section: Methodsmentioning

confidence: 99%