Photosynthesis and dark respiration of leaves of terrestrial carnivorous plants

0340128 - BÚ 2010 RIV SK eng J - Journal Article
Hájek, Tomáš - Adamec, Lubomír
Photosynthesis and dark respiration of leaves of terrestrial carnivorous plants.
Biologia. Roč. 65, č. 1 (2010), s. 69-74. ISSN 0006-3088. E-ISSN 1336-9563
Institutional research plan: CEZ:AV0Z60050516
Keywords : CO2 gasometry * light photosynthetic curves * costs of carnivory
Subject RIV: EF - Botanics
Impact factor: 0.609, year: 2010

Using CO2 gasometry, net photosynthetic (PN) and dark respiration rates (RD) were measured in leaves or traps of 12 terrestrial carnivorous plant species usually grown in the shade. Generally, mean maximum PN (60 nmol CO2 g–1 (DM) s–1 or 2.7 µmol m–2 s–1) was low in comparison with that of vascular non-carnivorous plants but was slightly higher than that reported elsewhere for carnivorous plants. After light saturation, the facultatively heliophytic plants behaved as shade-adapted plants. Mean RD in leaves and traps of all species reached about 50 % of maximum PN and represents the high photosynthetic (metabolic) cost of carnivory.
Permanent Link: http://hdl.handle.net/11104/0183437