Ethrel-induced release of fresh seed dormancy causes remodelling of amylase activity, proteomics, phytohormone and fatty acid profile of groundnut (Arachis hypogaea L.)

Chaudhari, Hemangini A.; Mahatma, M. K.; Antala, Virali; Radadiya, Nidhi; Ukani, Piyush K; Tomar, Rukam S.; Thawait, Lokesh Kumar; Singh, Sushmita; Gangadhara, K.; Sakure, Amar; Parihar, Anit

doi:10.1007/s12298-023-01332-6

Cited by 4 publications

(2 citation statements)

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“…It was also demonstrated that seed dormancy is affected through the endogenous hormone balance of ABA, GA 3 and IAA. While previous studies [ 17 , 27 ] have primarily focused on the role and physiological effects of individual hormones in seed germination, it is important to recognize that endogenous hormones interact through co-regulation rather than acting independently. Hence, we investigated the ratio of IAA/ABA, GA 3 /ABA, and (IAA + GA 3 )/ABA.…”

Section: Discussionmentioning

confidence: 99%

“…The process of seed dormancy release is intricately linked to the provision of key stored substances that are closely associated with dormancy, as well as the maintenance of a dynamic balance in energy conversion within the seed. Besides, the regulation of the activity of amylase, peroxidase, catalase and other related enzymes facilitates the breakdown of stored substances, playing crucial roles in seed dormancy release [ 17 , 27 , 28 ]. Furthermore, endogenous hormones, such as abscisic acid (ABA), GA 3 , and indoleacetic acid (IAA), play crucial roles in the regulation of seed germination and are essential for understanding the mechanisms underlying seed dormancy release [ 29 , 30 , 31 ].…”

Section: Introductionmentioning

confidence: 99%

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Methodological and Physiological Study during Seed Dormancy Release of Symplocos paniculata

Zhang,

Tang,

et al. 2024

Plants

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Symplocos paniculata are reported to exhibit seed dormancy, which impedes its cultivation and widespread adoption. In this study, a comprehensive method was established to overcome seed dormancy by subjecting seeds to scarification in 98% H2SO4 for 10 min, followed by 1000 mg·L−1 GA3 soaking for 48 h and stratification at 4 °C for 100 days. The seed germination percentage has increased significantly, to a peak of 42.67%, though the seeds could not germinate timely by NaOH scarification. Additionally, the dynamic changes of key stored substances (proteins, soluble sugars, starches, and fats), associated enzyme activities (amylases, peroxidase, and catalase), and endogenous hormones (abscisic acid, gibberellic acid, and indole-3-acetic acid) in seeds were investigated. The results demonstrated a continuous degradation of starch and fat in S. paniculata seeds, while the levels of protein and soluble sugar exhibited fluctuations, which probably facilitated seed dormancy breaking through energy supply and transformation. The enzymatic activities underwent rapid changes, accompanied by a gradual decrease in ABA content within the seeds with increasing stratification time. Notably, GA3, GA3/ABA, and (GA3 + IAA)/ABA showed significant increases, indicating their positive regulatory roles in seed germination. This study clarified the dormancy mechanism and established an effective method for the release dormancy of S. paniculata seeds.

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Section: Discussionmentioning

confidence: 99%