Temporal Control of Seed Development in Dicots: Molecular Bases, Ecological Impact and Possible Evolutionary Ramifications

Malovichko, Yury V.; Shikov, Anton E.; Nizhnikov, Anton A.; Antonets, Kirill S.

doi:10.3390/ijms22179252

Cited by 5 publications

(4 citation statements)

References 271 publications

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“…Moreover, abiotic conditions must fit and mutualists must be present. Seed development is then internally triggered particularly by phytohormones and sugars (Malovichko et al ., 2021). Thus, niche choice in plants cannot be considered an active choice as in animals, but is rather a screening process where a (mis‐) match between the seed metabotype and the abiotic and biotic conditions determines germination success or failure.…”

Section: Niche Realization Processesmentioning

confidence: 99%

Chemical phenotype as important and dynamic niche dimension of plants

Müller

Junker

2022

New Phytologist

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Niche theory considering the traits of species and individuals provides a powerful tool to integrate ecology and evolution of species. In plant ecology, morphological and physiological traits are commonly considered as niche dimensions, whereas phytochemical traits are mostly neglected in this context despite their pivotal functions in plant responses to their environment and in mediating interactions. The diversity of plant phytochemicals can thus mediate three key processes: niche choice, conformance and construction. Here, we integrate frameworks from niche theory with chemical ecology and argue that plants use their individual-specific diversity in phytochemicals (chemodiversity) for different niche realization processes. Our concept has important implications for ecosystem processes and stability and increases the predictive ability of chemical ecology.

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Section: Niche Realization Processesmentioning

confidence: 99%

Chemical phenotype as important and dynamic niche dimension of plants

Müller

Junker

2022

New Phytologist

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“…Nonetheless, seeds from all populations display antioxidant capacity that may be su cient to mediate aging associated deteriorative reactions to some degree during storage under non-optimal conditions of temperature and relative humidity (Walters et al 2005). Moreover, it is well documented that environmental conditions directly impact seed quality as well as their desiccation tolerance, nutrient level, storage potential and the accumulation of antioxidants and other related secondary metabolites (Bewley et al, 2013;Pehlivan, 2017;Ellis, 2019;Malovichko et al, 2021). We observed differences in the accumulation of antioxidant levels in dry seeds compared to imbibed seeds across all populations (Fig.…”

Section: Discussionmentioning

confidence: 60%

Environmental conditions predetermine innate antioxidants pool in sea oat (Uniola paniculata L.) seeds

Egesa,

Pérez,

Begcy

2023

Preprint

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Secondary metabolites such as antioxidants are critical components that protect seeds from stress damage during seed development, desiccation, and ex-situ storage. Antioxidants are essential determinants of seed quality, longevity, and persistence. Understanding the environmental factors that regulate the accumulation, content, and function of antioxidant pools in sea oat seeds is critical for gene banking and understanding the environmental impacts on seed quality. Germination, viability, and Trolox Equivalent Antioxidant Capacity (TEAC) were analyzed on seeds from 18 sea oat populations from the US Atlantic and Gulf of Mexico coasts. We first assessed baseline TEAC, followed by TEAC performed on imbibed seeds for 36 hours at 35/25 °C during the day and night, respectively. Then, we analyzed the relationship of the antioxidant pools from these 18 sea oat populations to sampling site environmental classifications. Higher baseline antioxidants were common in regions with extreme environmental conditions corresponding to sea oat populations growing at latitudinal extremes characterized by warmer and colder temperatures. Baseline antioxidants did not correlate with prevailing seed germination. However, higher concentrations of antioxidants following imbibition were associated with poor seed germination in warmer conditions. Our results indicate that climatic conditions and environmental components associated with temperatures and precipitation may largely influence the innate pool of antioxidants in sea oat seeds. Also, a high amount of antioxidants following sea oat seeds imbibition suggest seed damage or poor viability influenced by environmental stress conditions during seed development.

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“…Moreover, it is well documented that environmental conditions directly impact seed quality as well as their desiccation tolerance, nutrient level, storage potential and the accumulation of antioxidants and other related secondary metabolites (Bewley et al 2013;Pehlivan 2017;Ellis 2019;Malovichko et al 2021). We observed differences in the accumulation of antioxidant levels in dry seeds compared to imbibed seeds across all populations (Fig.…”

Section: Environmental and Climate Influences On Seed Quality Antioxi...mentioning

confidence: 60%

Environmental conditions predetermine innate antioxidants pool in sea oat (Uniola paniculataL.) seeds

Egesa

Pérez

Begcy

2023

Preprint

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Background and Aims Secondary metabolites such as antioxidants are critical components that protect seeds from stress damage during seed development, desiccation, and ex-situ storage. Antioxidants are essential determinants of seed quality, longevity, and persistence. Understanding the environmental factors that regulate the accumulation, content, and function of antioxidant pools in sea oat seeds is critical for gene banking and understanding the environmental impacts on seed quality. Methods Germination, viability, and Trolox Equivalent Antioxidant Capacity (TEAC) were analyzed on seeds from 18 sea oat populations from the US Atlantic and Gulf of Mexico coasts. We first assessed baseline TEAC, followed by TEAC performed on imbibed seeds for 36 hours at 35/25C during the day and night, respectively. Then, we analyzed the relationship of the antioxidant pools from these 18 sea oat populations to sampling site environmental classifications. Key Results Higher baseline antioxidants were common in regions with extreme environmental conditions corresponding to sea oat populations growing at latitudinal extremes characterized by warmer and colder temperatures. Baseline antioxidants did not correlate with prevailing seed germination. However, higher concentrations of antioxidants following imbibition were associated with poor seed germination in warmer conditions. Conclusions Our results indicate that climatic conditions and environmental components associated with temperatures and precipitation may largely influence the innate pool of antioxidants in sea oat seeds. Also, a high amount of antioxidants following sea oat seeds imbibition suggest seed damage or poor viability influenced by environmental stress conditions during seed development.

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Temporal Control of Seed Development in Dicots: Molecular Bases, Ecological Impact and Possible Evolutionary Ramifications

Cited by 5 publications

References 271 publications

Chemical phenotype as important and dynamic niche dimension of plants

Chemical phenotype as important and dynamic niche dimension of plants

Environmental conditions predetermine innate antioxidants pool in sea oat (Uniola paniculata L.) seeds

Environmental conditions predetermine innate antioxidants pool in sea oat (Uniola paniculataL.) seeds

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