جستجوی مقالات مرتبط با کلیدواژه "گیاهان" در نشریات گروه "مکانیک"

Light is as an environmental factor affecting plant growth. So far, various light sources have been used to grow plants in closed systems and space studies. Traditional light sources have some problems and are not suitable for space research. The biggest problem of them is the need for the high energy source, power supply weight, and heat production. LED light spectra were designed to solve plant cultivation problems in space for the first time and are recently used in terrestrial research such as greenhouses and plant cultivation rooms. The LED spectra have different colors, but laboratory studies are needed to determine the plants' involvement for these spectra. In this study, LED light technology, effect of spectra on the growth, production of metabolites and optical receptors are investigated.

Plant study in space under microgravity condition is a very important goal in sending alive animals and human beings to space. Gravity modulates plant growth and its development and these processes are influenced by the balance between cell proliferation and differentiation in meristems. Regulation of cell cycle progression causes cell proliferation and growth and finally produces optimum biomass. Microgravity affects cellular processes and compounds. Plant growth and development changes under such condition, leading to alterations in the cytoplasmic membrane, transcriptome, proteome, cell wall, and Ca2+-signaling in specialized  and not specialized cells of gravity perception. Cellular and molecular studies can help to visualize response mechanisms to microgravity and the  solution of problems in plant culture in space.

Efforts to reach space is becoming widespread and of great interest to scientists and futurologists. in long time travels human beings are required to supply food in the form of growing plants. Growth of plants is dependent on abiotic environmental factors, such as various stresses. Therefore, abiotic stresses such as gravity and radiation should be investigated for the growth and maintenanceof plants in space. A plant model such as Arabidopsis is used to investigate the response of plants regarding different stresses in space. Therefore, in this paper, gravitational and radiation stresses have been studied on Arabidopsis plant for space travels.