Summary
Heterocysts of aerobically grown Anabaena cylindrica can reduce acetylene in the light, without added cofactors, up to 30% as rapidly as can the intact filaments from which they are derived.
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Wolk, C.P., Wojciuch, E. Photoreduction of acetylene by heterocysts. Planta 97, 126–134 (1971). https://doi.org/10.1007/BF00386760
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DOI: https://doi.org/10.1007/BF00386760