The David Miller Travel Bursary Award aims to give early career plant scientists or horticulturists the opportunity of overseas travel in connection with their horticultural careers.
Juan Carlos De la Concepcion was awarded one of the 2018 David Miller Travel Bursaries to attend the International Congress of Plant Pathology (ICPP) 2018: Plant Health in A Global Economy, which was held in Boston, US. Here, he details his experience attending the international conference and the opportunities it provided.
I’m currently completing the third-year of my rotation PhD in Plant and Microbial Science at the John Innes Centre in Norwich, UK. My work addresses how plant pathogens cause devastating diseases that affect food security worldwide, and how plants can recognise them and organise an immune response to keep themselves healthy.
Because of the tremendous damage that plant diseases cause in agricultural and horticulturally relevant species, this topic has become central to achieving the UN Zero Hunger challenge.
Thanks to the David Miller Award, I was able to participate in the International Congress of Plant Pathology (ICPP) 2018: Plant Health in A Global Economy held in Boston, US. This event is the major international conference in the plant pathology field and only occurs once every five years.
This year, the conference gathered together over 2,700 attendees, representing the broad international community of plant pathologist across the globe. In this conference, the leading experts in the different aspects of the field presented the latest advances and innovations.
Juan’s current research looks at the rice plant’s immune response to pathogens.
These experts are setting a vision and future directions for tackling some of the most damaging plant diseases in the agriculture and horticulture industries, ensuring enough food productivity in a global economy.
Blue dye, in this cross-section of a maize cob, highlights the rice gene that controls T6P in the kernels’ phloem. Image: Rothamsted Research
Through the introduction of a rice gene, scientists have produced a maize plant that harvests more kernels per plant – even in periods of drought.
The rice gene expressed depresses levels of a natural chemical, trehalose 6 -phosphate (T6P), in the phloem of the transgenic maize plant. T6P is responsible for the distribution of sucrose in the plant.
Lowering levels of T6P in the phloem, an essential track in the plant’s transportation system, allows more sucrose to be channelled to the developing kernels of the plant. As a result of increased levels of sucrose in this area of the maize plant, more kernels are produced.
Drought is an increasing problem in countries such as Uganda. Image: Hannah Longhole
‘These structures are particularly sensitive to drought – female kernels will abort,’ said Matthew Paul, team leader and plant biochemist at Rothamsted Research, UK. ‘Keeping sucrose flowing within the structures prevents this abortion.’
The transatlantic team, from Rothamsted and biotechnology company Syngenta in the US, built on field tests published three years ago that demonstrated increased productivity of the same genetically-modified maize.
‘This is a first-in-its-kind study that shows the technology operating effectively both in the field and in the laboratory,’ said Paul.
Maize growing on world’s oldest experiment, Broadbalk field at Rothamsted Research. Image: Rothamsted Research
Drought is becoming an increasing problem for developing countries, where the economic and social impacts are most evident.
Maize, also known as corn, and other cereals are relied on heavily across these nations due to their low cost and high nutritional value, with rice, maize, and wheat used for 60% of the global food energy intake.
The results of these trials are promising, and the team believe this work could be transferred to wheat and rice plants, as well as other cereals, said Paul.