Comparative transcriptome analysis provides novel insights into phytohormone dynamic changes during seed germination in carrot (<i>Daucus carota</i> L.)

Tan, Shan-Shan; Jiang, Min; Zhang, Xinyue; Duan, Ao-Qi; Li, Tong; Liu, Yanhua; Xiong, Ai‐Sheng

doi:10.1080/14620316.2022.2077241

Cited by 2 publications

(1 citation statement)

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“… 59 Auxin is the second hormone that promotes seed dormancy besides ABA, 26 and its content will affect seed dormancy. Tan et al measured the hormone content of carrot seeds at different germination stages and found that the IAA content showed a gradually increasing trend, 60 which is consistent with the results of this study that the IAA content gradually increased from DZ1 to DZ4. Some studies have pointed out that the physiological effects of auxin are two-sided, 61 that is, it promotes plant growth and seed germination at low concentrations, but it has a hindering effect at higher concentrations.…”

Section: Discussionsupporting

confidence: 90%

Physiology and transcriptome of Eucommia ulmoides seeds at different germination stages

Liu,

Qiu,

Xue

et al. 2024

Plant Signaling & Behavior

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E. ulmoides (Eucommia ulmoides) has significant industrial and medicinal value and high market demand. E. ulmoides grows seedlings through sowing. According to previous studies, plant hormones have been shown to regulate seed germination. To understand the relationship between hormones and E. ulmoides seed germination, we focused on examining the changes in various indicators during the germination stage of E. ulmoides seeds. We measured the levels of physiological and hormone indicators in E. ulmoides seeds at different germination stages and found that the levels of abscisic acid (ABA), gibberellin (GA), and indole acetic acid (IAA) significantly varied as the seeds germinated. Furthermore, we confirmed that ABA, GA, and IAA are essential hormones in the germination of E. ulmoides seeds using Gene Ontology and Kyoto Encyclopedia of Genes and Genomics enrichment analyses of the transcriptome. The discovery of hormone-related synthesis pathways in the control group of Eucommia seeds at different germination stages further confirmed this conclusion. This study provides a basis for further research into the regulatory mechanisms of E. ulmoides seeds at different germination stages and the relationship between other seed germination and plant hormones.

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