Scientist have recently discovered that molecules called phytochromes, that are used to detect light during the day, are used at night for temperature sensor. The findings that are in Science journal show that phytochromes control genetic switches in response to temperature. The resposnes control the growth and development of the plant. At night the phytochromes change there state and the rate at which they change is direactly proportional to the decrease in temperature. The warm it is the faster these cells change and the faster the plant grows. The responsiveness of plants have been observed for hundreds of years but the exact mechanism that cause these responses have been unknown, until now. This research is being done to help increase to yield of crops because by 2050 it is estimated that the yields will have to double to keep up with the growing human population. fao.org estimtes that by 2050 to feed the world we would need to increase productivity by 70%, and developing countries would need to double their production.
Global agriculture towards 2050. (n.d.). Retrieved October 31, 2016, from http://www.fao.org/fileadmin/templates/wsfs/docs/Issues_papers/HLEF2050_Global_Agriculture.pdf
University of Cambridge. (2016, October 27). Plant 'thermometer' discovered that triggers springtime budding by measuring night-time heat. . Retrieved October 31, 2016 from www.sciencedaily.com/releases/2016/10/161027142952.htm