PhotosynQ Focus

Now that the MultispeQ v1.0 instruments are released, we want to share some stories of how the community is using PhotosynQ technolgies. Today we want to focus on Isaac Osei-Bonsu from Ghana, currently a PhD student in the Kramer Lab at Michigan State University.



Isaac Osei-Bonsu has been a PhotosynQ user since the early beta days in 2015. Over that time, he has collected over 13,000 measurements and created 46 PhotosynQ projects. As we worked towards releasing the new instruments, Isaac was often tasked with testing out new MultispeQ prototypes, and some iterations did not work so well! At the end of the day, Isaac collected over 3,000 measurements with MultispeQ v1.0 prototypes and his feedback helped us to modify and improve the MultispeQ throughout the design and manufacturing process.

Isaac’s background

Isaac hails from the west African nation of Ghana, where he was a research scientist for the Council for Scientific and Industrial Research-Crops Research Institute (CSIR-CRI). In Isaac’s own words, “The company is a National Agricultural Research institution which focuses on research on different crop species with the aim to improve agriculture in Ghana.” He studied a wide variety of crops including cowpea, peanut, pepper, eggplants, citrus, mangoes, avocado, pear, papaya and watermelon.

Ghana, like many countries in sub-Saharan Africa, is struggling to achieve food security and develop a robust economy. This means that the government wants farmers to produce more high value crops, like cocoa, for international markets. However, this comes at the expense of land for growing food crops, which is why it is so important to improve the productivity and efficiency of important food crops.

What Isaac is doing now

Isaac arrived at MSU with the help of a Legume Scholars Award which he received from the Consultative Group on International Agricultural Research (CGIAR) in 2015. The Legume Scholars Program supports the graduate study of young scientists from developing countries so they can pursue research careers involving grain legumes  (

Isaac’s is studying the photosynthetic response of  grain legumes to abiotic stress in order to improve grain legume production. His interest with automatic plant phenotyping was piqued “by the simple yet powerful nature of the MultispeQ device, connected to the PhotosynQ platform, and its possible use for rapid phenotyping in the field.” Manual phenotyping can be extremely slow and not entirely accurate. The MultispeQ instrument and the PhotosynQ platform make it easy and quick. He now uses the MultispeQ in most of his experiments. He doesn’t just use PhotosynQ because it is easier, but also because it allows him to develop a deeper understanding of abiotic stress responses in grain legumes.

Thank you to Isaac for taking some time out of your busy days to answer all of our questions. Having Isaac around our lab is a pleasure and his input into the PhotosynQ platform and MultispeQ instruments have been invaluable. We hope our instruments can help him as much as he has helped us and wish him luck in his continued research.