Phytochrome and blue light-mediated stomatal opening in the orchid, paphiopedilum.

@article{Talbott2002PhytochromeAB,
  title={Phytochrome and blue light-mediated stomatal opening in the orchid, paphiopedilum.},
  author={Lawrence D. Talbott and Jianxin Zhu and Seung Won Han and Eduardo Zeiger},
  journal={Plant \& cell physiology},
  year={2002},
  volume={43 6},
  pages={
          639-46
        }
}
Guard cells of the orchid genus, Paphiopedilum have been reported to lack developed chloroplasts and detectable chlorophyll a autofluorescence. Paphiopedilum stomata lack a photosynthesis-dependent opening response but have a blue light-specific opening. The present study found that low fluence rate green and red light elicited stomatal opening in Paphiopedilum and this opening was reversed by far red light, indicating the presence of a phytochrome-mediated opening response. Phytochrome… 

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