Expression of ethylene biosynthesis genes in the gynoecium and receptacle associated with sepal abscission during senescence in Delphinium grandiflorum

Okamoto, Mitsutoshi; Niki, Tomoko; Azuma, Mirai; Shibuya, Kazuhiko; Ichimura, Kazuo

doi:10.1007/s10725-022-00822-z

Cited by 7 publications

(2 citation statements)

References 58 publications

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“…Differential expression regulation has been observed for three cloned ACS genes, namely DcACS1, DcACS2, and DcACS3, in Dianthus flowers [150]. Okamoto et al [151] revealed the differential expression of ACS and ACO genes in Delphinium grandiflorum. In this study, ET generation in the receptacle showed a significant increase during natural senescence, while the gynoecium exhibited only a slight enhancement in ET production.…”

Section: Senescencementioning

confidence: 99%

Role of Ethylene in the Regulation of Plant Developmental Processes

Khan,

Alvi,

Khan

2024

Stresses

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Ethylene, a gaseous phytohormone, is emerging as a central player in the intricate web of plant developmental processes from germination to senescence under optimal and stressed conditions. The presence of ethylene has been noted in different plant parts, including the stems, leaves, flowers, roots, seeds, and fruits. This review aims to provide a comprehensive overview of the regulatory impact of ethylene on pivotal plant developmental processes, such as cell division and elongation, senescence, abscission, fruit and flower development, root hair formation, chloroplast maturation, and photosynthesis. The review also encompasses ethylene biosynthesis and signaling: a snapshot of the regulatory mechanisms governing ethylene production. Understanding of the impact of ethylene’s regulatory functions on plant developmental processes has significant implications for agriculture, biotechnology, and our fundamental comprehension of plant biology. This review underscores the potential of ethylene to revolutionize plant development and crop management.

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Section: Senescencementioning

confidence: 99%

Role of Ethylene in the Regulation of Plant Developmental Processes

Khan,

Alvi,

Khan

2024

Stresses

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“…Notably, higher plants usually possess green sepals, as seen in the famous cutting flowers, including carnations, roses and chrysanthemums, while few grow colorful sepals, such as red sepals in Fuchsia hybrida, Bougainvillea sp. and Anthurium andraeanum [1,2], as well as blue sepals in Hydrangea macrophylla and Delphinium grandiflorum [3,4]. From an evolutionary perspective, the vivid flower colors benefit plants by attracting insects to assist in pollination and fertilization, thus successfully achieving population reproduction [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Targeted Metabolome and Transcriptome Analyses Reveal the Molecular Mechanism of Color Variation between Sepals and Petals in Fuchsia hybrida

Lei,

Li,

Wang

et al. 2023

Horticulturae

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The sepal color of Fuchsia hybrida is colorful instead of green and usually varies from the petal colors, which greatly increases its ornamental value and attract customers’ preference. However, the potential molecular mechanism underlying the color variation between sepals and petals remains unclear. The present study collected F. hybrida with red sepals and purple petals to explore the key pigments and genes involved in color development using a targeted metabolome and transcriptome. A total of 43 metabolites with diverse hydroxylation, glycosylation, methylation and acylation patterns were isolated and identified by UPLC-MS/MS. The quantification analysis showed that peonidin-3,5-O-diglucoside and malvidin-3,5-O-diglucoside were the most abundant anthocyanins accumulating in the sepals and petals, respectively. Then, six libraries from the sepals and petals were constructed for the transcriptome and 70,135 unigenes were generated. The transcript level of FhF3′H was significantly higher in the sepals, while Fh3′5′H showed more abundant expression in the petals, which can account for the abundant peonidin and malvidin accumulation in the sepals and petals, respectively. The subsequent multiomics analysis showed that both the differentially accumulated anthocyanins and expressed unigenes were enriched in the anthocyanin biosynthesis pathway. Additionally, FhMYBs potentially regulating anthocyanin biosynthesis were screened out by correlation analysis and protein interaction prediction. These findings help to elucidate the molecular mechanisms underlying the color variation between the sepals and petals in F. hybrida.

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