Seed-to-Seedling Transition: Novel Aspects

Smolikova, Galina; Медведев, С.С.

doi:10.3390/plants11151988

Cited by 5 publications

(5 citation statements)

References 25 publications

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“…Seed germination and seedling establishment are critical stages of the life cycle of gymnosperms and angiosperms. Germinating seeds and seedlings are particularly sensitive to stresses, so that environmental and biotic factors may dramatically affect plant ontogenesis and stress responses, with consequences on plant survival, growth, and yield ( Finch-Savage and Bassel, 2016 ; Pereira et al , 2021 ; Kandhol et al , 2022 ; Smolikova and Medvedev, 2022 ). Thus, these early stages of plant development are particularly prone to being affected by the interaction with NMs ( Szőllősi et al , 2020 ; H.M. Ahmad et al , 2022 ).…”

Section: Nms Affect Plants At the Organ And Organism Levelsmentioning

confidence: 99%

Multilevel approach to plant–nanomaterial relationships: from cells to living ecosystems

Oliveira

Seabra

Kondak

et al. 2023

Journal of Experimental Botany

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Due to their unique properties, nanomaterials (NMs) behave peculiarly in biosystems. Regarding plants, the interactions of NMs can be interpreted on a spatial scale: from local interactions in cells to systemic effects on whole plants and on ecosystems. Interpreted on a time scale, the effects of NMs on plants may be immediate or subsequent. At the cellular level, the composition and structure of the cell wall and membranes are modified by NMs, promoting internalization. The effects of NMs on germination and seedling physiology and on the primary and secondary metabolisms in the shoot are realized at organ and organism levels. Nanomaterials interact with the beneficial ecological partners of plants. The effects of NMs on plant growth-promoting rhizobacteria and legume-rhizobia symbiosis can be stimulating or inhibitory, depending on the concentration and type of NM. Nanomaterials exert a negative effect on arbuscular mycorrhiza, and vice versa. Pollinators are exposed to NMs, which may affect plant reproduction. The substances released by the roots influence the availability of NMs in the rhizosphere and components of plant cells trigger internalization, translocation, and transformation of NMs. Understanding of the multilevel and bidirectional relationship between plants and NMs is of great relevance in practice.

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Section: Nms Affect Plants At the Organ And Organism Levelsmentioning

confidence: 99%

Multilevel approach to plant–nanomaterial relationships: from cells to living ecosystems

Oliveira

Seabra

Kondak

et al. 2023

Journal of Experimental Botany

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“…This network allows orthodox seeds to maintain desiccation tolerance during dormancy and germination [ 33 , 34 , 35 , 36 ]. Radicle protrusion marks the transition to the post-germination stage, with seeds becoming seedlings and losing desiccation tolerance [ 9 , 33 , 37 ]. This stage is typically associated with LAFL network silencing [ 5 , 32 , 34 , 38 , 39 ].…”

Section: Introductionmentioning

confidence: 99%

“…As result, ABI3 , ABI4 , and ABI5 were expressed in the embryonic axis before radicle protrusion but downregulated at the post-germination stage. Given that ABI3 , ABI4 , and ABI5 are central transcriptional factors in seed-specific events, including maturation, dormancy, longevity, germination, and post-germination growth [ 16 , 40 , 41 ], we propose that PsABI3 , PsABI4 , and PsABI5 also play a role in regulating the P. sativum seed-to-seedling transition [ 4 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

“…The transition from dormancy to germination is influenced by a balance of phytohormones and significant environmental factors, such as temperature, water availability, and light [1,3]. This transition, occurring at the end of germination, involves extensive transcriptome reprogramming and signaling pathway Plants 2024, 13, 206 2 of 16 alterations, leading to the silencing of seed maturation genes and activation of those for vegetative growth [4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

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Involvement of Abscisic Acid in Transition of Pea (Pisum sativum L.) Seeds from Germination to Post-Germination Stages

Smolikova,

Krylova,

Petřík

et al. 2024

Plants

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The transition from seed to seedling represents a critical developmental step in the life cycle of higher plants, dramatically affecting plant ontogenesis and stress tolerance. The release from dormancy to acquiring germination ability is defined by a balance of phytohormones, with the substantial contribution of abscisic acid (ABA), which inhibits germination. We studied the embryonic axis of Pisum sativum L. before and after radicle protrusion. Our previous work compared RNA sequencing-based transcriptomics in the embryonic axis isolated before and after radicle protrusion. The current study aims to analyze ABA-dependent gene regulation during the transition of the embryonic axis from the germination to post-germination stages. First, we determined the levels of abscisates (ABA, phaseic acid, dihydrophaseic acid, and neo-phaseic acid) using ultra-high-performance liquid chromatography–tandem mass spectrometry. Second, we made a detailed annotation of ABA-associated genes using RNA sequencing-based transcriptome profiling. Finally, we analyzed the DNA methylation patterns in the promoters of the PsABI3, PsABI4, and PsABI5 genes. We showed that changes in the abscisate profile are characterized by the accumulation of ABA catabolites, and the ABA-related gene profile is accompanied by the upregulation of genes controlling seedling development and the downregulation of genes controlling water deprivation. The expression of ABI3, ABI4, and ABI5, which encode crucial transcription factors during late maturation, was downregulated by more than 20-fold, and their promoters exhibited high levels of methylation already at the late germination stage. Thus, although ABA remains important, other regulators seems to be involved in the transition from seed to seedling.

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“…Saline environments harm plants through physiological drought (Dantas et al, 2019), ion dysregulation (Habib et al, 2016) and, oxidative stress (Yang and Guo, 2018) and leads to a generated metabolic disorder (Zhang et al, 2021). Seed germination and seedling growth are the most vulnerable periods in the seed life process and germination is easily disturbed by numerous stressors that in turn, affect seedling growth and final yield and quality (Smolikova and Medvedev, 2022). Therefore, successful seed germination and healthy seedling growth is a necessity for sustained crop production.…”

Section: Introductionmentioning

confidence: 99%

A microencapsulation approach to design microbial seed coatings to boost wheat seed germination and seedling growth under salt stress

Gong,

He,

Kong

et al. 2023

Front. Plant Sci.

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IntroductionSalt stress in seed germination and early seedling growth is the greatest cause of crop loss in saline-alkali soils. Microbial seed coating is an effective way to promote plant growth and salt resistance, but these coatings suffer from poor seed adhesion and low survival rates under typical storage conditions.MethodsIn this study, the marine bacterium Pontibacter actiniarum DSM 19842 from kelp was isolated and microencapsulated with calcium alginate using the emulsion and internal gelation method.ResultsCompared to unencapsulated seeds, the spherical microcapsules demonstrated a bacterial encapsulation rate of 65.4% and survival rate increased by 22.4% at 25°C for 60 days. Under salt stress conditions, the seed germination percentage of microcapsule-embedded bacteria (M-Embed) was 90%, which was significantly increased by 17% compared to the germination percentage (73%) of no coating treatment (CK). Root growth was also significantly increased by coating with M-Embed. Chlorophyll, peroxidase, superoxide dismutase, catalase, proline, hydrogen peroxide and malondialdehyde levels indicated that the M-Embed had the best positive effects under salt stress conditions.DiscussionTherefore, embedding microorganisms in suitable capsule materials provides effective protection for the survival of the microorganism and this seed coating can alleviate salt stress in wheat. This process will benefit the development of sustainable agriculture in coastal regions with saline soils.

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Seed-to-Seedling Transition: Novel Aspects

Cited by 5 publications

References 25 publications

Multilevel approach to plant–nanomaterial relationships: from cells to living ecosystems

Multilevel approach to plant–nanomaterial relationships: from cells to living ecosystems

Involvement of Abscisic Acid in Transition of Pea (Pisum sativum L.) Seeds from Germination to Post-Germination Stages

A microencapsulation approach to design microbial seed coatings to boost wheat seed germination and seedling growth under salt stress

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