Thomas ap Rees was a botanist

Botany

Botany, plant science, or plant biology is a branch of biology that involves the scientific study of plant life. Traditionally, botany also included the study of fungi, algae and viruses...

. He was Professor of Botany at the University of Cambridge

University of Cambridge

The University of Cambridge is a public research university located in Cambridge, United Kingdom. It is the second-oldest university in both the United Kingdom and the English-speaking world , and the seventh-oldest globally...

 between 1991 and 1996 when he has killed in a road accident whilst cycling home. He was born in Frome

Frome

Frome is a town and civil parish in northeast Somerset, England. Located at the eastern end of the Mendip Hills, the town is built on uneven high ground, and centres around the River Frome. The town is approximately south of Bath, east of the county town, Taunton and west of London. In the 2001...

, Somerset

Somerset

The ceremonial and non-metropolitan county of Somerset in South West England borders Bristol and Gloucestershire to the north, Wiltshire to the east, Dorset to the south-east, and Devon to the south-west. It is partly bounded to the north and west by the Bristol Channel and the estuary of the...

 and attended Llandovery College

Llandovery College

Llandovery College is an independent school in Llandovery, Carmarthenshire, Wales. It was founded and endowed by Thomas Phillips in 1847 to provide a classical and liberal education in which the Welsh language; the study of Welsh literature and history were also to be cultivated.Llandovery...

, Dyfed

Dyfed

Dyfed is a preserved county of Wales. It was created on 1 April 1974 under the terms of the Local Government Act 1972, and covered approximately the same geographic extent as the ancient Principality of Deheubarth, although excluding the Gower Peninsula and the area west of the River Tawe...

 and served two years military service

Military service

Military service, in its simplest sense, is service by an individual or group in an army or other militia, whether as a chosen job or as a result of an involuntary draft . Some nations require a specific amount of military service from every citizen...

 in the Royal Corps of Signals

Royal Corps of Signals

The Royal Corps of Signals is one of the combat support arms of the British Army...

 before studying botany at Lincoln College

Lincoln College, Oxford

Lincoln College is one of the constituent colleges of the University of Oxford in the United Kingdom. It is situated on Turl Street in central Oxford, backing onto Brasenose College and adjacent to Exeter College...

, University of Oxford

University of Oxford

The University of Oxford is a university located in Oxford, United Kingdom. It is the second-oldest surviving university in the world and the oldest in the English-speaking world. Although its exact date of foundation is unclear, there is evidence of teaching as far back as 1096...

. He lived in Sydney

Sydney

Sydney is the most populous city in Australia and the state capital of New South Wales. Sydney is located on Australia's south-east coast of the Tasman Sea. As of June 2010, the greater metropolitan area had an approximate population of 4.6 million people...

, Australia

Australia

Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...

 for a number of years as a lecturer in botany at the University of Sydney

University of Sydney

The University of Sydney is a public university located in Sydney, New South Wales. The main campus spreads across the suburbs of Camperdown and Darlington on the southwestern outskirts of the Sydney CBD. Founded in 1850, it is the oldest university in Australia and Oceania...

 and in 1961 he was appointed as Senior Research Officer of the Commonwealth Scientific and Industrial Research Organisation

Commonwealth Scientific and Industrial Research Organisation

The Commonwealth Scientific and Industrial Research Organisation is the national government body for scientific research in Australia...

. He returned to Britain in 1964 to take up a lecturing post at the University of Cambridge.

Research

Rees' contribution to plant biochemistry was substantial. He published over 100 research papers and more than 20 reviews during his career. Over 170 scientists attended a meeting held after his death in honour of him and his work. His main area of research was in the regulation and control of plant metabolism

Metabolism

Metabolism is the set of chemical reactions that happen in the cells of living organisms to sustain life. These processes allow organisms to grow and reproduce, maintain their structures, and respond to their environments. Metabolism is usually divided into two categories...

. He argued that sucrose

Sucrose

Sucrose is the organic compound commonly known as table sugar and sometimes called saccharose. A white, odorless, crystalline powder with a sweet taste, it is best known for its role in human nutrition. The molecule is a disaccharide composed of glucose and fructose with the molecular formula...

 played a central role in plant metabolism. Much of his research was on non-crop

Crop

Crop may refer to:* Crop, a plant grown and harvested for agricultural use* Crop , part of the alimentary tract of some animals* Crop , a modified whip used in horseback riding or disciplining humans...

species as he believed that there may be metabolic features present in these that could be bred into crop plants. Fellow scientists admired him for his sound approach to research.