Department of Natural Sciences, Engineering and Mathematics, Mid Sweden University, Sundsvall, Sweden.
Photochem Photobiol. 2012 Nov-Dec;88(6):1455-60. doi: 10.1111/j.1751-1097.2012.01187.x. Epub 2012 Jul 9.
This study investigates the effects of different light qualities on the photosynthetic capacity of the brown algae Fucus vesiculosus, from the Norwegian Sea, and Fucus radicans and F. vesiculosus, from the Bothnian Sea. The electron transport rates (ETR) obtained for F. vesiculosus from the Norwegian Sea showed significantly higher levels of light saturation compared with both species of algae from the Bothnian Sea. The maximum of ETR values for the Norwegian Sea strain showed no significant changes due to varying light quality compared with the initial values. For F. vesiculosus, from the Bothnian Sea, treatment with blue light showed an effect after 1 week of 30 and 90 μmol photons m(-2) s(-1) (P<0.01), and for F. radicans from the Bothnian Sea, at the irradiance of 90 μmol photons m(-2) s(-1) and 1 week (P<0.01). After 1 week in the Bothnian Sea species and after 2 weeks in F. vesiculosus from the Norwegian Sea, the photosynthetic efficiency (α) was significantly higher regardless of light quality and irradiance compared with the initial values. Variation in light quality and irradiance had minor effects on the F(v):F(m) values of the three algal strains studied.
本研究调查了不同光质对来自挪威海的褐藻泡叶藻、波罗的海的石莼和泡叶藻光合作用能力的影响。来自挪威海的泡叶藻的电子传递速率（ETR）显示出明显更高的光饱和水平，与来自波罗的海的两种藻类相比。与初始值相比，来自挪威海的泡叶藻的 ETR 值最大值没有因光质的变化而发生显著变化。对于来自波罗的海的泡叶藻，在 30 和 90 μmol 光子 m(-2) s(-1)（P<0.01）的蓝光处理下，1 周后显示出效果，对于来自波罗的海的石莼，在 90 μmol 光子 m(-2) s(-1)和 1 周的辐照度下（P<0.01）。在波罗的海物种中经过 1 周和在挪威海的泡叶藻中经过 2 周后，无论光质和辐照度如何，与初始值相比，光合作用效率（α）都显著提高。光质和辐照度的变化对所研究的三种藻类菌株的 F(v):F(m)值影响较小。
