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Name: Ashar
Status: other
Grade: other
Location: Outside U.S.
Country: India
Date: Winter 2011-2012

I would like to know if there are any plants which produces oxygen at night (without photosynthesis). I was told by a friend that Holy Basil (Ocimum tenuiflorum) produces oxygen even at night and I'm not convinced.

Some plants (particularly those of dry regions, e.g., deserts) only open their stomates at night to avoid drying out to intake CO2 (and output O2) (CAM photosynthesis)

Sincerely, Anthony R. Brach, PhD Missouri Botanical Garden

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