As part of an ongoing effort to improve commercial scale algae biofuel production, a group of scientists, led by crude oil producer Sapphire Energy, Inc, completed a collaborative study which identified the morphology, ultrastructure, and life history of A. protococcarum, one of the most difficult to manage algae parasites. Their paper appears in the online journal PLoS ONE.
Algal biofuels production, although theoretically attractive, faces a number of economic challenges—in particular, producing algae cost effectively at an agricultural scale. Although open ponds have been extensively studied and are considered to be the lowest cost and most scalable technologies for the production of algae, one of the challenges those systems face is contamination by algal predators and fast growing heterotrophs.
Parasitic attacks can be devastating, destroying mass algae cultures in days. Unless contamination can be controlled, the researchers note, it is unlikely that open ponds will ever reach their potential in the production of algae for biofuel.
“Numerous taxa in the basal fungi are primary parasites of the green algae that are major players in the biofuel industry. We have been exploring eukaryotic parasites attacking open ponds of Scenedesmus dimorphus grown for biofuel production in New Mexico, USA. Understanding these parasites’ life histories and phylogenetic relationships will help in the development of future strategies to control attacks in outdoor algal cultivation facilities,” the study reads.
The article provides a comprehensive study of the parasite challenge facing crop protection for scaled algae cultivation in open-pond systems. These results can provide a broader understanding and promote the development of sustainable management strategies for biofuel production, the authors suggest.
“Identifying and overcoming crop protection challenges, from pest control to environmental factors, is critical to ensuring successful, scalable algae farming, and has long been a part of the research and development objective of Sapphire Energy. This collaborative study demonstrates the power of synergy when academic and industrial scientists work together for a common goal, and lays the groundwork for the better understanding and creation of innovative strategies that will facilitate algae biofuel production at commercial scale,” said Alex Aravanis, MD, PhD, chief science officer at Sapphire Energy.