Profiling carbohydrate composition, biohydrogen capacity, and disease resistance in potato

Abstract

Background: Potato (Solanum tuberosum) is one of the most important sources of carbohydrates in human diet. Because of its high carbohydrate levels it recently has also received attention in biohydrogen production. To exploit the natural variation of potato with respect to resistance to major diseases, carbohydrate levels and composition, and capacity for biohydrogen production we analyzed tubers of native, improved, and genetically modified potatoes, and two other tuberous species for their glucose, fructose, sucrose, and starch content. Results: High-starch potato varieties were evaluated for their potential for Caldicellulosiruptor saccharolyticus-mediated biohydrogen production with Desirée and Rosita varieties delivering the highest biohydrogen amounts. Native line Vega1 and improved line Yagana were both immune to two isolates (A291, A287) of Phytophthora infestans. Conclusions: Our data demonstrate that native potato varieties might have great potential for further improving the multifaceted use of potato in worldwide food and biohydrogen production.

Categorisation of reactions and enumeration of bacteria in potato cultivars inoculated with the causal agent of bacterial ring rot

“…A higher level of recovery should help plants overcome the first critical multiplication steps. These results are consistent with the studies claiming a relationship of enhanced carbohydrate level associated with high average resistance to the major potato diseases (Nowicki et al 2012;Diez-de-Medina Roldán et al 2013). The significance of increased starch content for the survival of Cms infected in vitro cultures and potato plants during the first steps of the multiplication is a topic that requires further study.…”