title: A User's View of the Parameters Derived from the Induction Curves of Maximal ChlorophyllaFluorescence: Perspectives for Analyzing Stress.
abstract: Analysis of the fast kinetics of the induction curve of maximal fluorescence represents a relatively recent development for chlorophyllafluorescence measurements. The parameters of the so-called JIP-test are exploited by an increasingly large community of users to assess plant stress and its consequences. We provide here evidence that these parameters are capable to distinguish between stresses of different natures or intensities, and between stressed plants of different genetic background or at different developmental stages at the time of stress. It is, however, important to keep in mind that the JIP-test is inherently limited in scope, that it is based on assumptions which are not fully validated and that precautions must be taken to ensure that measurements are meaningful. Recent advances suggest that some improvements could be implemented to increase the reliability of measurements and the pertinence of the parameters calculated. We moreover advocate for using the JIP-test in combination with other techniques to build comprehensive pictures of plant responses to stress.
authors.affiliation: INRA - Centre d'Avignon, UR 1115 Plantes et Systèmes de Culture HorticolesAvignon, France; UMR QualiSud, Université d'Avignon et des Pays du VaucluseAvignon, France.
authors.forename: Julie
authors.initials: J
authors.lastname: Ripoll
authors.affiliation: INRA - Centre d'Avignon, UR 1115 Plantes et Systèmes de Culture Horticoles Avignon, France.
authors.forename: Nadia
authors.initials: N
authors.lastname: Bertin
authors.affiliation: INRA, UMR AGAP Montpellier, France.
authors.forename: Luc P R
authors.initials: LP
authors.lastname: Bidel
authors.affiliation: UMR QualiSud, Université d'Avignon et des Pays du Vaucluse Avignon, France.
authors.forename: Laurent
authors.initials: L
authors.lastname: Urban
keywords: JIP-test; Solanum lycopersicum L.; chlorophyll a fluorescence; potential and limits; stress response; water deficit