Meta-analysis assessing potential of steady-state chlorophyll fluorescence for remote sensing detection of plant water, temperature and nitrogen stress

0446433 - ÚVGZ 2016 RIV NL eng J - Článek v odborném periodiku
Ač, Alexander - Malenovský, Z. - Olejníčková, Julie - Gallé, A. - Rascher, U. - Mohammed, G.
Meta-analysis assessing potential of steady-state chlorophyll fluorescence for remote sensing detection of plant water, temperature and nitrogen stress.
Remote Sensing of Environment. Roč. 168, oct (2015), s. 420-436. ISSN 0034-4257. E-ISSN 1879-0704
Grant CEP: GA MŠMT(CZ) LO1415
Institucionální podpora: RVO:67179843
Klíčová slova: steady-state chlorophyll fluorescence * passive sun-induced fluorescence * active laser-induced fluorescence * photosynthesis * stress * water * temperature * nitrogen * random-effects meta-analysis * FLEX satellite mission
Kód oboru RIV: EH - Ekologie - společenstva
Impakt faktor: 5.881, rok: 2015

Many laboratory studies investigating chlorophyll fluorescence (F) of plants have provided sufficient evidence of the functional link between dynamic changes in photosynthetic activity and F emissions. Far fewer studies, however, have been devoted to detailed analysis of F emission under steady-state conditions,whichmay beamenable to measurement by passive spectroradiometers onboard airborne or satellite missions. Here, we provide a random-effects meta-analysis of studies using both passively (sun-induced) and actively (e.g. laser-induced) measured steady-state F for detecting stress reactions in terrestrial vegetation. Specifically,we review behaviour of F in red and far-redwavelengths, and also the red to far-red F ratio, for plants physiologically stressed bywater deficit, temperature extremes, and nitrogen insufficiency. Results suggest that water stress is, in general, associatedwith a decline in red and far-red F signal intensity measured at both leaf and canopy levels, whereas the red to far-red F ratio displays an inconsistent behaviour. Chilling, forwhich only studieswith active measurements at the leaf level are available, significantly increased red and far-red F,whereas heat stress produced a less convincing decrease in both F emissions, notably in canopies measured passively. The clearest indicator of temperature stress was the F ratio,which declined significantly and consistently. The F ratiowas also the strongest indicator of nitrogen deficiency, revealing a nearly uniformly increasing pattern driven by predominantly declining far-red F. Although significant knowledge gaps were encountered for certain scales and F measurement techniques, the analyses indicate that future airborne or space-borne acquisitions of both red and far-red F signalswould be beneficial for timely detection of plant stress events.
Trvalý link: http://hdl.handle.net/11104/0248427