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D.I.ARNON

Submitted to:-Dr.shankarnarayan.VDepartment of agronomyCollege of sericulture,chintamani

From:-LakshmimithraI Bsc(agri)ALC 3027College of sericulture,chintamani

DANIEL ISRAEL ARNON 

(November 14, 1910 – December 20, 1994) was a Polish-born American plant physiologist whose research led to greater insights into the operation of photosynthesis in plants.

HISTORY :-Arnon was born on November 14, 1910, in Warsaw.Arnon's interest in agriculture. Arnon's readings of the works of Jack London.He enrolled in the University of California and would spend his entire professional career at the school, until his retirement in 1978. He ultimately earned his Ph.D. in plant physiology at UC Berkeley.

some of his earliest research focused on growing plants in nutrient-enriched water rather than in the soil. During World War II, Arnon served in the United States Army in the Pacific Theater of Operations, where he used his prior experience with plant nutrition on Ponape Island, where there was no arable land available and he was able to grow food to feed the troops stationed there using gravel and nutrient-enriched water.

CONTRIBUTION’S OF ARNON:-Arnon's work as a plant biochemist can be divided into two major categories and time periods. From 1936 until 1950, he was primarily involved in plant nutrition studies. He and his collaborators discovered the importance of trace elements, particularly molybdenum and vanadium, in plants and algae. This work led in turn to important developments in the study of nitrogen metabolism.

Arnon performed research on chloroplasts and their role in the photosynthesis process. His work was able to demonstrate how energy from sunlight is used to form adenosine triphosphate, the energy transport messenger within living cells, by adding a third phosphorus group to adenosine diphosphate.