Could the umbel order selection and GA3 treatment improve seed germination in Amazon chicory species?Could the umbel order selection and GA3 treatment improve seed germination in Amazon chicory species?

Moraes, Larissa da Fonseca; Andrade, Francisco Laurimar do Nascimento; Gomes, Rafaelle Fazzi; Santos, Lucas da Silva

doi:10.1590/1678-4499.20200404

Cited by 1 publication

(1 citation statement)

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“…These events ultimately lead to seed growth, beginning with water uptake and ending with radicle elongation (Ma et al, 2022). GAs are positive regulators of seed germination (Moraes et al, 2021). We found that three factors were important for improving and accelerating the germination of C. gigantea seeds, namely, the photoperiod (hours of light), incubation temperature, and exogenous application of GA 3 .…”

Section: Discussionmentioning

confidence: 83%

Proteomic characterization of the different stages of seed germination in Cupressus gigantea

Li,

Zhang,

Lei

et al. 2024

Seed Sci. Res.

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Seed germination is a pivotal period of plant growth and development. This process can be divided into four major stages, swelling absorption, seed coat dehiscence, radicle emergence and radicle elongation. Cupressus gigantea, a tree native to Tibet, China, is characterized by its resistance to stresses such as cold, and drought, and has a high economic and ecological value. Nevertheless, given its unique geographic location, its seeds are difficult to germinate. Therefore, it is crucial to explore the mechanisms involved in seed germination in this species to improve the germination efficiency of its seeds, thereby protecting this high-quality resource. Here, our findings indicate that seed germination was enhanced when exposed to a 6-h/8-h light/dark photoperiod, coupled with a temperature of 20°C. Furthermore, the application of exogenous GA3 (1 mg/ml, about 2.9 mM) stimulated the germination of C. gigantea seeds. Subsequently, proteomics was used to detect changes in protein expression during the four stages of seed germination. We identified 34 differentially expressed proteins (DEPs), including 13 at the radicle pre-emergence stage, and 17 at the radicle elongation stage. These DEPs were classified into eight functional groups, cytoskeletal proteins, energy metabolism, membrane transport, stress response, molecular chaperones, amino acid metabolism, antioxidant system and ABA signalling pathway. Most of them were found to be closely associated with amino acid metabolism. Combined, these findings indicate that, along with temperature and light, exogenous GA3 can increase the germination efficiency of C. gigantea seeds. Our study also offers insights into the changes in protein expression patterns in C. gigantea seeds during germination.

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Section: Discussionmentioning

confidence: 83%