{"id":1809,"date":"2018-12-06T17:28:07","date_gmt":"2018-12-06T09:28:07","guid":{"rendered":"https:\/\/www.agrinoon.com\/agriculture\/?p=1809"},"modified":"2018-12-06T17:28:07","modified_gmt":"2018-12-06T09:28:07","slug":"temperature-sensor-hand-uc-riverside-researchers-can-engineer-crops-produce-yields-warmer-climates","status":"publish","type":"post","link":"https:\/\/www.agrinoon.com\/agriculture\/2018\/12\/06\/temperature-sensor-hand-uc-riverside-researchers-can-engineer-crops-produce-yields-warmer-climates\/","title":{"rendered":"With a temperature sensor in hand, UC Riverside researchers can engineer crops that produce yields in warmer climates"},"content":{"rendered":"

<\/p>\n

When it gets hot outside, humans and animals have the luxury of seeking shelter in the shade or cool, air-conditioned buildings. But plants are stuck.<\/p>\n

While not immune to changing climate, plants respond to the rising mercury in different ways. Temperature affects the distribution of plants around the planet. It also affects the flowering time, crop yield, and even resistance to disease.\u00a0
\n<\/em><\/p>\n

In a paper published in Nature Communications, Meng Chen and colleagues at UC Riverside describe the genetic triggers that prepare plants for growth under different temperature conditions using the model plant, Arabidopsis.<\/p>\n

Plants grow following the circadian clock, which is controlled by the seasons. All of a plant\u2019s physiological processes are partitioned to occur at specific times of day.<\/p>\n

According to Chen, the longstanding theory held that Arabidopsis senses an increase in temperature during the evening. In a natural situation, Arabidopsis, a winter plant, would probably never see higher temperature at night.<\/p>\n

\u201cThis has always been puzzling to us,\u201d said Chen, senior author on the paper. \u201cOur understanding of the phytochrome signaling pathway is that it should also sense temperature during the daytime, when the plant would actually encounter higher temperature.\u201d<\/p>\n

In fact, Arabidopsis grows at different times of day as the seasons change. In the summer, the plant grows during the day, but during the winter it grows at night. Previous experiments that mimicked winter conditions showed a dramatic response in phytochrome B, but experiments that mimicked summer conditions were less robust.<\/p>\n

Chen and his team decided to examine the role of phytochrome B in Arabidopsis at 21 degrees Celsius and 27 degrees Celsius under red light. The monochromatic wavelength allowed the team to study how this particular plant sensor functions without interference from other wavelengths of light.<\/p>\n

\u201cUnder these conditions, we see a robust response,\u201d Chen said. \u201cThe work shows that phytochrome B is a temperature sensor during the day in the summer. Without this photoreceptor, the response in plants is significantly reduced.\u201d<\/p>\n

Beyond identifying the function of phytochrome B, Chen\u2019s work also points to the role of HEMERA, a transcription activator that turns on the temperature-responsive genes that control plant growth.<\/p>\n

\u201cWe found the master control for temperature sensing in plants,\u201d Chen said. \u201cHEMERA is conserved in all plants, from moss to flowering plants.\u201d<\/p>\n

In essence, Chen and his team identified the genetic mechanism used by all plants as they respond to daylight conditions as well as the ability to sense temperature.<\/p>\n

\u201cTo cope with rapid temperature changes associated with global warming, we may have to help nature to evolve crops to adapt to the new environment,\u201d Chen said. \u201cThis will require a molecular understanding of how plants sense and respond to temperature.\u201d<\/p>\n

\n
\n

Source<\/strong>:\u00a0University of California, Riverside<\/a><\/span><\/h4>\n<\/div>\n
<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

When it gets hot outside, humans and animals have the luxury of seeking shelter in the shade or cool, air-conditioned buildings. But plants are stuck. While not immune to changing climate, plants respond to the rising mercury in different ways. Temperature affects the distribution of plants around the planet. It also affects the flowering time,… Continue reading With a temperature sensor in hand, UC Riverside researchers can engineer crops that produce yields in warmer climates<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17],"tags":[],"class_list":["post-1809","post","type-post","status-publish","format-standard","hentry","category-industry-news","entry"],"yoast_head":"\nWith a temperature sensor in hand, UC Riverside researchers can engineer crops that produce yields in warmer climates - agrinoon<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.agrinoon.com\/agriculture\/2018\/12\/06\/temperature-sensor-hand-uc-riverside-researchers-can-engineer-crops-produce-yields-warmer-climates\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"With a temperature sensor in hand, UC Riverside researchers can engineer crops that produce yields in warmer climates - agrinoon\" \/>\n<meta property=\"og:description\" content=\"When it gets hot outside, humans and animals have the luxury of seeking shelter in the shade or cool, air-conditioned buildings. 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