Osmopriming-associated genes in Poincianella pyramidalis

Antunes, Cimille Gabrielle Cardoso; Castro, Renato Delmondez de; Neto, Valdir Gomes; Marques, Alexandre; Takahashi, Daniele; Fernandez, Luzimar Gonzaga; Pelacani, Claudinéia Regina; Toorop, Peter E.; Aflitos, Saulo Alves; Hilhorst, H.W.M.; Ligterink, Wilco

doi:10.1016/j.envexpbot.2020.104345

Cited by 3 publications

(3 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Seed osmopriming is a technique used for seed improvement, which can promote faster and more uniform germination, improving the enzymatic and biochemical activities involved in germination metabolism, being considered an excellent tool for the physiology and management of plants under stress conditions, including hormonal priming (Debta et al, 2023). The beneficial effect of osmopriming on the germination and vigor of seeds of forest species has been reported by some authors, such as in Peltophorum dubium (Missio et al, 2018), in Albizia saman, Cedrela odorata, Enterolobium cyclocarpum and Swietenia macrophylla (Vilarreal et al, 2020), and in Poincianella pyramidalis (Antunes et al, 2021).…”

Section: Osmocondicionamento De Sementes Com áCido Salicílico Na Indu...mentioning

confidence: 75%

Seed osmopriming with salicylic acid on induction of tolerance of Cenostigma pyramidale to water deficit

Nóbrega,

Silva,

Silva

et al. 2024

RARV

View full text Add to dashboard Cite

Cenostigma pyramidale is an endemic species of Brazil, widely spread in the Caatinga biome. The conditions in the semi-arid Northeastern region of Brazil can affect the development of plants due to the irregularity of rainfall, limiting the availability of water and reducing the germination and initial growth of native species. Therefore, seed priming with salicylic acid may mitigate the effects of water stress on plants. The objective of this work was to evaluate the effect of seed osmopriming with salicylic acid as a water deficit attenuator on germination and initial growth of C. pyramidale seedlings. A completely randomized design in a 5 × 5 factorial scheme, corresponding to five osmotic potentials (Ψs – 0, -0.3, -0.6, -0.9 and -1.2 MPa) and five doses of salicylic acid (0, 0.5, 1.0, 1.5 and 2.0 mM), with four repetitions of 25 seeds, was used. Germination and initial growth of C. pyramidale were compromised by water deficit. Osmopriming of seeds with salicylic acid at a dose of 0.63 mM is an efficient strategy to reduce the effect of water deficit in the germination stage from the potential of -0.2 MPa. The vigor of C. pyramidale seeds increased under deficit conditions with the application of salicylic acid, with the concentration varying from 0.5 to 1.0 mM. Osmopriming seeds with 0.87 mM salicylic acid promotes the development of vigorous seedlings under water deficit conditions.

show abstract

Section: Osmocondicionamento De Sementes Com áCido Salicílico Na Indu...mentioning

confidence: 75%

Seed osmopriming with salicylic acid on induction of tolerance of Cenostigma pyramidale to water deficit

Nóbrega,

Silva,

Silva

et al. 2024

RARV

View full text Add to dashboard Cite

show abstract

“…Already in the last decade, Buitink et al showed that Medicago truncatula L. seeds with a radicle length of up to 1 mm can sustain a short-term dehydration, whereas the DT of the seeds was completely dependent on the degree of applied osmotic stress when the radicle length achieved 2.7 mm [40]. This fact illustrates the effect of osmopriming, which can extend a species-specific DT window [40,44]. It is known that DT of germinated Arabidopsis thaliana (L.) Heynh.…”

Section: Stages Of Seed Germinationmentioning

confidence: 99%

“…species-specific DT window [40,44]. It is known that DT of germinated Arabidopsis thaliana (L.) Heynh.…”

Section: Stages Of Seed Germinationmentioning

confidence: 99%

Transition from Seeds to Seedlings: Hormonal and Epigenetic Aspects

Smolikova

Стрыгина

Крылова

et al. 2021

Plants

View full text Add to dashboard Cite

Transition from seed to seedling is one of the critical developmental steps, dramatically affecting plant growth and viability. Before plants enter the vegetative phase of their ontogenesis, massive rearrangements of signaling pathways and switching of gene expression programs are required. This results in suppression of the genes controlling seed maturation and activation of those involved in regulation of vegetative growth. At the level of hormonal regulation, these events are controlled by the balance of abscisic acid and gibberellins, although ethylene, auxins, brassinosteroids, cytokinins, and jasmonates are also involved. The key players include the members of the LAFL network—the transcription factors LEAFY COTYLEDON1 and 2 (LEC 1 and 2), ABSCISIC ACID INSENSITIVE3 (ABI3), and FUSCA3 (FUS3), as well as DELAY OF GERMINATION1 (DOG1). They are the negative regulators of seed germination and need to be suppressed before seedling development can be initiated. This repressive signal is mediated by chromatin remodeling complexes—POLYCOMB REPRESSIVE COMPLEX 1 and 2 (PRC1 and PRC2), as well as PICKLE (PKL) and PICKLE-RELATED2 (PKR2) proteins. Finally, epigenetic methylation of cytosine residues in DNA, histone post-translational modifications, and post-transcriptional downregulation of seed maturation genes with miRNA are discussed. Here, we summarize recent updates in the study of hormonal and epigenetic switches involved in regulation of the transition from seed germination to the post-germination stage.

show abstract