Porcar-Castell Albert, Pfündel Erhard, Korhonen Janne F J, Juurola Eija
Department of Forest Ecology, University of Helsinki, P. O. Box 27, Helsinki, 00014 Finland.
Photosynth Res. 2008 May;96(2):173-9. doi: 10.1007/s11120-008-9292-3. Epub 2008 Feb 19.
We present and evaluate the performance of a new field monitoring PAM fluorometer (MONI-PAM) which is intended for short- and long-term monitoring of the acclimation of photosystem II (PSII). The instrument measures chlorophyll fluorescence, photosynthetic photon flux density (PPFD), and temperature in the field, and monitors exactly the same leaf area over prolonged periods of time, facilitating the estimation of both rapidly reversible and sustained non-photochemical quenching (NPQ). The MONI-PAM performance is evaluated in the lab and under natural conditions in a Scots pine canopy during spring recovery of photosynthesis. The instrument provides a new tool to study in detail the acclimation of PSII to the environment under natural field conditions.
我们展示并评估了一种新型野外监测脉冲幅度调制荧光仪（MONI-PAM）的性能，该仪器旨在对光系统II（PSII）的适应过程进行短期和长期监测。该仪器可在野外测量叶绿素荧光、光合光子通量密度（PPFD）和温度，并在较长时间内精确监测同一叶面积，有助于估算快速可逆和持续的非光化学猝灭（NPQ）。在实验室以及在春季光合作用恢复期间的苏格兰松树冠层自然条件下对MONI-PAM的性能进行了评估。该仪器为在自然野外条件下详细研究PSII对环境的适应提供了一种新工具。
