ECOLOGIA DA PROPAGAÇÃO: INTERAÇÕES ENTRE SEMENTES E MEIO AMBIENTE
ECOLOGIA DA PROPAGAÇÃO: INTERAÇÕES ENTRE SEMENTES E MEIO AMBIENTE
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DOI: https://doi.org/10.22533/at.ed.5342406093
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Palavras-chave: Ecossistema, Interações, Adaptação, Competição.
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Keywords: Ecosystem, Interactions, Adaptation, Competition.
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Abstract: Seeds, fundamental for the perpetuation of plant species, are complex structures composed of different elements, such as seed coat, almond and endosperm. Originating in flowers, their formation process involves the fertilization of the ovule by the pollen grain, giving rise to the embryo and endosperm. For germination and colonization of new environments to occur, several environmental factors are necessary, such as water, oxygen, temperature and light, varying according to the species. However, some seeds present dormancy, a strategy to guarantee the temporal and spatial distribution of the species. In addition to external factors, seeds can also be affected by allelopathic substances produced by other plants, such as volatile terpenes, which act as germination inhibitors. In the semi-arid northeastern region of Brazil, several plant species, such as Mesospherum suaveolens, Lantana montevidensis and Lantana camara, have this ability, using it as a strategy to compete for scarce resources, such as water. Tarenaya spinosa, still little studied, is also capable of producing these substances, contributing to the complexity of interactions between plants in this arid region
- José Weverton Almeida Bezerra
- Ademar Maia Filho
- Bárbara Fernandes Melo
- Isabella Johanes Nascimento Brito
- Nathallia Correia da Silva
- Maria Aparecida Barbosa Ferreira Gonçalo
- Damiana Gonçalves de Sousa Freitas
- Marcos Aurélio Figueiredo dos Santos
- Dieferson Leandro de Souza
- Alison Honorio de Oliveira
- Jaceilton Alves de Melo
- Murilo Felipe Felício