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Table 1 CF parameters used in this study

From: Phenoplant: a web resource for the exploration of large chlorophyll fluorescence image datasets

Symbol

Name §

Formula

Col-0 control vs. Ler control

Col-0 inoculated vs. Col-0 control

Ler inoculated vs. Ler control

FO

Minimal chlorophyll fluorescence intensity

Measured

   

measured in the dark-adapted state measured in the dark-adapted state (FO) and during the dark relaxation (FO(85))

F’O

Minimal chlorophyll fluorescence intensity measured in the light-adapted state

Measured

   

measured during the light adaptation (F’O(n)) and at the steady-state (F’O(74))

Fm

Maximal chlorophyll fluorescence intensity measured in the dark-adapted state

Measured

Fm(85)*

  

measured in the dark-adapted state (Fm) and during the dark adaptation (Fm(85))

F’m

Maximum chlorophyll fluorescence intensity measured in the light adapted state

Measured

F’m(25)**, F’m(38)**, F’m(50)*, F’m(62)*, F’m(74)*

  

measured during the ligth-adaptation (F’m(n)) and at the steady-state (F’m(74))

FP

Peak fluorescence during the initial phase of the Kautsky effect

Measured

   

measured at the begining of the light adaptation

FT

Instantanueous fluorescence

Measured

 

FT(25)*, FT(50)*, FT(62)**, FT(74)*

 

measured in the dark-adapted state (FT(85)), during the light adaptation (FT(n)) and at the steady-state (FT(74))

Fv/Fm

Maximum PSII quantum yield

(Fm-FO)/Fm

Fv/Fm**

Fv/Fm*

 

measured at the dark-adaptated state

F’v/F’m

PSII quantum yield of light adapted sample

(F’m-F’O)/F’m

F’v/F’m(25)**, F’v/F’m(38)**, F’v/F’m(50)**, F’v/F’m(62)**, F’v/F’m(74)**

  

calculated during the light adaptation (F’v/F’m(n)) and at the steady-state (F’v/F’m(74))

NPQ

Non-photochemical quenching

(Fm-F’m)/Fm

NPQ(38)*

NPQ(25)*

NPQ(85)*, NPQ(62)**, NPQ(74)*

calculated in the dark-adapted state (NPQ(85)during the light adaptation (NPQ(n)) and at the steady-state (NPQ(74))

qL

estimator of the fraction of open PSII centers

qP(F’O/FT)

qL(25)**, qL(38)**, qL(50)**, qL(62)**, qL(74)**

  

calculated during the light adaptation (qL(n)) and at the steady-state (qL(74))

qP

Coefficient of photochemical quenching

(Fm-FT)/(Fm-FO)

qP(85)**, qP(25)**, qP(38)**, qP(50)**,qP(62)*

qP(25)**, qP(38)**, qP(50)**,qP(62)**,qP(74)**

qP(74)*

calculated in the dark-adapted state (qP(85)), during the light adaptation (qP(n)) and at the steady-state (qP(74))

Qy

Instantaneous PSII quantum yield

(Fm-Ft)/Fm

Qy(85)**, Qy(25)*,Qy(38)**, Qy(50)*, Qy(62)*, Qy(74)*

Qy(25)**,Qy(38)**, Qy(50)**, Qy(62)**, Qy(74)**

 

calculated during the light adaptation (Qy(n)) and at the steady-state (Qy(74))

RFD

Fluorescence decline ratio

(Fp-FT)/FT

RFD(25)**, RFD(38)**, RFD(50)**, RFD(62)**, RFD(74)*

 

RFD(50)**, RFD(62)**, RFD(74)**

calculated during the light adaptation (RFD(n)) and at the steady-state (RFD(74))

  1. Plants of ecotypes Ler and Col-0 of A. thaliana non-inoculated or inoculated with P. ramosa were imaged for 13 CF parameters (55 transient measures). This table presents the symbols and the names of the measured and the calculated CF parameters (§: n can be 25, 38, 50 or 62. For example, Fo was measured four times during the light adaptation at 25 s, 38 s, 50 s and 62 s).
  2. Significant differences between the global CF values of non-inoculated and inoculated plants of ecotype Col-0, non-inoculated and inoculated plants of ecotype Ler or non-inoculated plants of ecotype Col-0 and non-inoculated plants of ecotype Ler are indicated respectively in the fourth, fifth and sixth columns (*: Mann–Whitney U test, p-value < 0.05, **: Mann–Whitney U test, p-value < 0.01).
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Plant Methods

ISSN: 1746-4811