Light- and hormone-mediated development in non-flowering plants: An overview
- PDF / 2,121,758 Bytes
- 24 Pages / 595.276 x 790.866 pts Page_size
- 9 Downloads / 150 Views
REVIEW
Light‑ and hormone‑mediated development in non‑flowering plants: An overview Durga Prasad Biswal1,2 · Kishore Chandra Sekhar Panigrahi1,2 Received: 19 March 2020 / Accepted: 21 October 2020 © Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract Main Conclusion Light, hormones and their interaction regulate different aspects of development in non-flowering plants. They might have played a role in the evolution of different plant groups by conferring specific adaptive evolutionary changes. Abstract Plants are sessile organisms. Unlike animals, they lack the opportunity to abandon their habitat in unfavorable conditions. They respond to different environmental cues and adapt accordingly to control their growth and developmental pattern. While phytohormones are known to be internal regulators of plant development, light is a major environmental signal that shapes plant processes. It is plausible that light-hormone crosstalk might have played an important role in plant evolution. But how the crosstalk between light and phytohormone signaling pathways might have shaped the plant evolution is unclear. One of the possible reasons is that flowering plants have been studied extensively in context of plant development, which cannot serve the purpose of evolutionary comparisons. In order to elucidate the role of light, hormone and their crosstalk in the evolutionary adaptation in plant kingdom, one needs to understand various light- and hormone-mediated processes in diverse non-flowering plants. This review is an attempt to outline major light- and phytohormone-mediated responses in non-flowering plant groups such as algae, bryophytes, pteridophytes and gymnosperms. Keywords Flowering · Non-flowering · Algae · Bryophyte · Pteridophyte · Gymnosperm · Light · Hormone
Introduction Plant growth and development are mediated by different internal as well as external factors. Light as an environmental factor plays a major role in the development of plants. It regulates several aspects of plant development starting from seed germination to flowering in higher plants like Arabidopsis thaliana, tobacco, etc. Various photoreceptors sense the quality, quantity, and direction of light and enable the plants to adapt to environmental fluctuations. They modulate Communicated by Gerhard Leubner. * Kishore Chandra Sekhar Panigrahi [email protected] 1
School of Biological Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar, Odisha, India
Homi Bhabha National Institute (HBNI), Training School Complex, Anushakti Nagar, Mumbai 400094, India
2
the activity of different internal regulators and signal-transducing components, thereby controlling the plant responses. Phytohormones are one of the most important internal regulators in plants. These are small molecules that endow the plants with the ability of versatile and flexible response to various environmental cues such as light, temperature, humidity, pathogen, etc. Different hormone signaling pathways crosstalk among themsel
Data Loading...
