Effects of Maternal Environment on Seed Germination and Seedling Vigor of Petunia × hybrida under Different Abiotic Stresses
| Autor: | Chi Dinh Nguyen, Heqiang Alfred Huo, David G. Clark, Hector E. Pérez, Jianjun Chen |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
0301 basic medicine maternal effect Plant Science drought 01 natural sciences Petunia Article salinity 03 medical and health sciences chemistry.chemical_compound Ornamental plant petunia Abscisic acid Ecology Evolution Behavior and Systematics Abiotic component Ecology biology fungi Maternal effect Botany food and beverages biology.organism_classification Salinity Horticulture 030104 developmental biology chemistry ABA Germination Seedling QK1-989 heat 010606 plant biology & botany |
| Zdroj: | Plants Volume 10 Issue 3 Plants, Vol 10, Iss 581, p 581 (2021) |
| ISSN: | 2223-7747 |
| Popis: | Seed germination and seedling vigor can be affected by environmental cues experienced by the mother plant. However, information about how the maternal environment affects seed quality is scarce in ornamental plants. This study aimed to investigate the effects of two different maternal environments on the seed germination and seedling vigor of Petunia × hybrida under a variety of abiotic stresses. Petunia mother plants were grown in either a greenhouse during the summer months or an indoor controlled-temperature-and-light environment. Collected seeds were subjected to external stressors, including polyethylene glycol (PEG), sodium chloride (NaCl), high temperature, and abscisic acid (ABA), to determine seed germination percentage and seedling vigor. Results indicated that seeds harvested from the mother plants grown in a controlled environment germinated better than seeds harvested from the mother plants grown in the greenhouse when suboptimal germination conditions were applied. Additionally, the seedlings from the controlled maternal environment performed better in both ABA and salinity stress tests than the greenhouse seedlings. Interestingly, the greenhouse seedlings displayed less reactive oxygen species (ROS) damage and lower electrolyte leakage than the controlled environment seedlings under dehydration stress. The difference in germination and seedling vigor of seeds from the two different maternal environments might be due to the epigenetic memory inherited from the mother plants. This study highlighted the strong impact of the maternal environment on seed germination and seedling vigor in Petunia and may assist in high-quality seed production in ornamental plants. |
| Databáze: | OpenAIRE |
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