How do magnetic fields affect plants in vitro?
2015
A. Teixeira da Silva, Jaime | Dobránszki, Judit
This mini-review aims to assess how magnetic fields (MFs) have been shown to affect in vitro plant growth and development and the practical uses of this technology. Magnetic or electromagnetic fields have shown effects on morphogenesis from different initial explants; on growth-related parameters of in vitro shoots, roots, somatic embryos, and callus; and on the photosynthetic pigment profile, level of stress-induced alanine production, activity of stress-related enzymes, and endogenous levels of cytokinins and auxins. These effects have depended in part on the intensity and duration of exposure of the applied field and in part on the species and in vitro conditions, such as explant type or medium consistency. In vitro growth and development has been manipulated in a series of species, including field crops (soybean, alfalfa, wheat), herbs and medicinal plants (mojito mint, peppermint, spearmint, Calendula officinalis), horticultural crops (potato, sugar beet, wild Solanum spp.), fruits (beach plum), ornamentals (hybrid Cymbidium, hybrid Phalaenopsis, duckweed, Krainzia longiflora, Spathiphyllum), a weed (Haplopappus gracilis), and trees (cork oak, Paulownia sp.). MFs thus have the potential of being used to manipulate the growth and development of plants in vitro and serve as a novel system to open up novel avenues of research in plant science.
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