Tag Archives: University of Cambridge

Tomatoes with virus attract bees

Plant scientists at the University of Cambridge have found that the cucumber mosaic virus (CMV) alters gene expression in the tomato plants it infects, causing changes to the scent emitted by the plants. Bees can smell these subtle changes, and glasshouse experiments have shown that bumblebees prefer infected plants over healthy ones.

Scientists say that by indirectly manipulating bee behaviour to improve pollination of infected plants by changing their scent, the virus is effectively paying its host back. This may also benefit the virus: helping to spread the pollen of plants susceptible to infection and, in doing so, inhibiting the chance of virus-resistant plant strains emerging.

CMV is transmitted by aphids – bees don’t carry the virus. It’s one of the most prevalent pathogens affecting tomato plants, resulting in small plants with poor-tasting fruits that can cause serious losses to cultivated crops. As well as being one of the most damaging viruses for horticultural crops, CMV it also persists in wild plant populations, and the new findings may explain why.

“Bees provide a vital pollination service in the production of three-quarters of the world’s food crops. With their numbers in rapid decline, scientists have been searching for ways to harness pollinator power to boost agricultural yields,” said study principal investigator Dr John Carr, Head of Cambridge’s Virology and Molecular Plant Pathology group. “Better understanding the natural chemicals that attract bees could provide ways of enhancing pollination, and attracting bees to good sources of pollen and nectar – which they need for survival.”

Photo Credit: University of Cambridge / Alex M Murphy, Sanjie Jiang and John P Carr

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Student develops salad harvester

A student at Cambridge University has won an industry award for developing a new concept for salad harvesting.

Armand de Durfort, a graduate from Ecole Polytechnique who has just completed his MPhil in Industrial Systems, Manufacture and Management at the University of Cambridge, developed his SoftHarvest system in cooperation with G’s Growers.

“The first challenge was to teach the harvester to recognise the lettuce and distinguish it from other green plants. The second was for it to pick the lettuce and cut it near to the ground without damaging it,” he explained.

“Our approach is to develop the vision recognition and control software and integrate this with a two-armed robot. By using existing hardware and adding considerable value with the application-specific software we aim to mitigate the risk of investment and provide a three-year return on investment.”

Presenting the Student award as part of Agri-Tech East’s GROW competition, Dr Belinda Clarke, said, “There is significant and growing demand for automation in agriculture as we move towards greater precision in all areas of the industry. Armand De Durfort produced a well researched business plan based on his direct experience of working with a commercial grower. It shows an appreciation of the narrow profit margins in this competitive market and the technology is inspirational.”

Photo Caption: Left-Right: David Langton (Agrii), Armand de Durfort (Softharvest), Phil Wigge (Pinpoint Phenomics), Belinda Clarke (Agri-Tech East)

Photo Credit: Agritech-East


The post Student develops salad harvester appeared first on Hort News on 13 July 2016.