Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 ....

40
Roberto Baigorri 1,2 & José M García-Mina 2,3 1 Technical and Development Department, Timac Agro, Lodosa, Navarra 2 Departamento de Biología Ambiental, Facultad de Ciencias, Universidad de Navarra 3 Centre Mondial d’Innovation (CMI), Grupo Roullier, Saint Maló, Francia

Transcript of Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 ....

Page 1: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,

Roberto Baigorri1,2 & José M García-Mina2,3

1 Technical and Development Department, Timac Agro, Lodosa, Navarra 2 Departamento de Biología Ambiental, Facultad de Ciencias, Universidad de Navarra 3 Centre Mondial d’Innovation (CMI), Grupo Roullier, Saint Maló, Francia

Page 2: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,
Page 3: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,

Operational Classification

Soil

Humin (insoluble)

NaOH 0,1 M

Humic acid (insoluble)

soluble

HCl 6 M, pH 1

soluble

Fulvic acid KCl 2M, pH 7

Gray humic acid (insoluble)

Brown humic acid (soluble)

Stevenson, 1995

Page 4: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,

Alternativas a la clasificación operacional IHSS?

Compost

Compost HS (CHS) CHA CFA

Sedimentary (soil, aquatic organic matter)

Sedimentary HS (SHS) SHA SFA

Artificial (Char-Biochar, Chemical Oxidation, Anaerobic digestion…..)

Artificial HS (AHS) AHA AFA

Fresh (fresh organic matter)

Fresh HS (FHS) FHA FFA

Mora et al., 2014 (In M. N. Khan et al. (eds.) Nitric Oxide in Plants: Metabolism and Role in Stress Physiology, Springer., 2014)

Page 5: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,
Page 6: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,

Controversia

Page 7: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,
Page 8: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,
Page 9: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,
Page 10: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,

Fernandes et al., Journal of MolecularStructure 2010; 971, 33-38 (FTIR/ATR y 13C-NMR)

Page 11: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,

Soil Distribution in organomineral complexes - Partially transformed : aa, sugars, lignin ????

- New molecules from humification ???

- Mixed-systems

Aquatic – Soil Solution ======= Biological-Chemical properties - Reorganization of SOM in DOM

- Fractionation ===== Deep knowledge on chemical humic nature

Rainfall; Soil water infiltration

Page 12: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,
Page 13: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,

About the chemical nature of HS

Macromolecules Polyelectrolites Aggregates

Micelle-like Supramolecules

Ramdom coil

Self-associating aggregate

Swift R. Wershaw R. Piccolo A.

Open Debate Artifacts ??

Burdon J.

Soil Science 164 (11) 1999 Soil Science 166 (11) 2001

Page 14: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,

Baigorri et al., J. Phys Chem B., 2007

Page 15: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,
Page 16: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,

Intrinsic Factors Extrinsic Factors

1ª - 3ª Structural features

Substrate characteristics,

Crop management,

Environmental conditions,

Plant species,

Application type and moment

Indirect Effects Direct Effects

Physical features , porosity, aggregation,

Nutrient bioavailability ,

microbiota increase

Phytoregulator pathways

Nutrient root uptake regulation

Soil Conditioner Biostimulant

Page 17: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,

Indirect Effects

Capacidad de quelatación de metales

Page 18: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,
Page 19: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,

Direct Effects

Nutritional hypothesis

Pseudo-hormonal Hypothesis

Important relationships

between both Hypothesis

Page 20: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,

Jannin et al., PLSO 2012 NO3-, SO4

2-

Page 21: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,

Aguirre et al., PPB 2009

Fe

Page 22: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,

Billard et al., JPGR, 2013 Fe, Cu, Mn, Zn

Page 23: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,

Aguirre et al., PPB, 2009; Mora et al., JPP 2010

Canellas L, IHSS 17 Nardi’s Group Pinton’s Group

ATPasa

Page 24: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,

Leonardite Humic acid (PHA)

Without the presence of the Main phytoregulators in its Composition

PHA+IAA PHA

Page 25: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,

A

B

0

5

10

15

20

25

30

35

40

45

control 5 mg L -1 C 100 mg L-1 C

DA

F-2

DA

flu

ore

scen

ce (

AU

)

basal root

middle root

apical root

control 100 mg L-1 C5 mg L-1 C

DA

F-2

DA

flu

ore

sc

en

ce

(AU

)

0

5

10

15

20

25

30

35

40

45

control 5 mg L -1 C 100 mg L-1 C

DA

F-2

DA

flu

ore

scen

ce (

AU

)

basal root

middle root

apical root

control 100 mg L-1 C5 mg L-1 C

0

5

10

15

20

25

30

35

40

45

control 5 mg L -1 C 100 mg L-1 C

DA

F-2

DA

flu

ore

scen

ce (

AU

)

basal root

middle root

apical root

control 100 mg L-1 C5 mg L-1 C

DA

F-2

DA

flu

ore

sc

en

ce

(AU

)

* *

*

*

Mora et al., EEB 2012

- HA + HA

Features:

-Growth root promotion

-The number of secondary

roots from principal-basal

root (+ 36 % p<0.05)

-The thickness of

secondary roots

0,0

5,0

10,0

15,0

20,0

25,0

30,0

4h 24h 48h 72h

IAA

Co

ncen

trati

on

Leaf

(p

mo

l ·

g F

W)

0,0

20,0

40,0

60,0

80,0

100,0

4 24 48 72

IAA

Co

ncen

trati

on

Ro

ot

(pm

ol

· g

FW

)

0,0

2,0

4,0

6,0

8,0

10,0

4 24 48 72

Hours of treatment

Eth

yle

ne

Ro

ot

Pro

du

cti

on

(nl / g

FW

· h

)

Control

5 mg.L -1 Corg

100 mg.L -1 Corg

0,0

0,1

0,2

0,3

0,4

0,5

0,6

4 24 48 72

Hours of treatment

[IA

A]s

ho

ot

/ [I

AA

]ro

ot

control

5 mg.L -1

100 mg.L -1

*

*

*

*

*

*

*

* *

*

A

DC

BRoot IAA Shoot IAA

Root Ethylene IAA S:R Ratio

Root Growth-HA promoted

Page 26: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,

We have studied the effects of inhibitors:

TIBA and PCIB in relation to IAA

STS and Co for Ethylene

PTIO in relation to NO

Page 27: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,

Reactive Oxygen Species (ROS)???

Berbara’s Group García’s Group

Page 28: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,

Shoot Growth-HA promoted

Working Hypothesis

HA-ATPase-Nitrate (Canellas’s, Pinton’s & Nardi’s group)

Signal effect of Nitrate – increase in CKs translocation (Sakakibara’s & Von Wiren’s group; Garnica et al JPP (2010))

HA – Nitrate – CKs – Shoot growth; Nutrient translocation

Page 29: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,

Mora et al., JPP 2010

Page 30: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,

Mora et al., JPP 2010

Page 31: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,

Mora et al., JPP 2010

Page 32: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,

0

20

40

60

80

100

120

4 24 48 72

tota

l e

xtr

ac

ted

P (

%)

control

5 mg. L-1

100 mg. L-1

0

20

40

60

80

100

120

4 24 48 72

tota

l e

xtr

ac

ted

Ca

(%

)

0

20

40

60

80

100

120

4 24 48 72

tota

l e

xtr

ac

ted

K (

%)

0

20

40

60

80

100

120

4 24 48 72

tota

l e

xtr

ac

ted

Mg

(%

)

0

20

40

60

80

100

120

4 24 48 72

tota

l e

xtr

ac

ted

S (

%)

0

20

40

60

80

100

120

4 24 48 72

tota

l e

xtr

ac

ted

Fe

(%

)

0

20

40

60

80

100

120

4 24 48 72

tota

l e

xtr

ac

ted

Cu

(%

)

0

20

40

60

80

100

120

4 24 48 72

tota

l e

xtr

ac

ted

Zn

(%

)

0

20

40

60

80

100

120

4 24 48 72

tota

l e

xtr

ac

ted

B (

%)

0

20

40

60

80

100

120

4 24 48 72tota

l e

xtr

ac

ted

Mn

(%

)

0

20

40

60

80

100

120

4 24 48 72

Hours of treatment

tota

l e

xtr

ac

ted

Na

(%

)

* *

*** *

* * * *

* * * *

* *

*

* *

*

*

*

* *

** *

* *

*

* * * * *

***

*

**

* *

* *

0

20

40

60

80

100

120

4 24 48 72

tota

l e

xtr

ac

ted

P (

%)

control

5 mg. L-1

100 mg. L-1

0

20

40

60

80

100

120

4 24 48 72

tota

l e

xtr

ac

ted

Ca

(%

)

0

20

40

60

80

100

120

4 24 48 72

tota

l e

xtr

ac

ted

K (

%)

0

20

40

60

80

100

120

4 24 48 72

tota

l e

xtr

ac

ted

Mg

(%

)

0

20

40

60

80

100

120

4 24 48 72

tota

l e

xtr

ac

ted

S (

%)

0

20

40

60

80

100

120

4 24 48 72

tota

l e

xtr

ac

ted

Fe

(%

)

0

20

40

60

80

100

120

4 24 48 72

tota

l e

xtr

ac

ted

Cu

(%

)

0

20

40

60

80

100

120

4 24 48 72

tota

l e

xtr

ac

ted

Zn

(%

)

0

20

40

60

80

100

120

4 24 48 72

tota

l e

xtr

ac

ted

B (

%)

0

20

40

60

80

100

120

4 24 48 72tota

l e

xtr

ac

ted

Mn

(%

)

0

20

40

60

80

100

120

4 24 48 72

Hours of treatment

tota

l e

xtr

ac

ted

Na

(%

)

0

20

40

60

80

100

120

4 24 48 72

tota

l e

xtr

ac

ted

P (

%)

control

5 mg. L-1

100 mg. L-1

0

20

40

60

80

100

120

4 24 48 72

tota

l e

xtr

ac

ted

Ca

(%

)

0

20

40

60

80

100

120

4 24 48 72

tota

l e

xtr

ac

ted

K (

%)

0

20

40

60

80

100

120

4 24 48 72

tota

l e

xtr

ac

ted

Mg

(%

)

0

20

40

60

80

100

120

4 24 48 72

tota

l e

xtr

ac

ted

S (

%)

0

20

40

60

80

100

120

4 24 48 72

tota

l e

xtr

ac

ted

Fe

(%

)

0

20

40

60

80

100

120

4 24 48 72

tota

l e

xtr

ac

ted

Cu

(%

)

0

20

40

60

80

100

120

4 24 48 72

tota

l e

xtr

ac

ted

Zn

(%

)

0

20

40

60

80

100

120

4 24 48 72

tota

l e

xtr

ac

ted

B (

%)

0

20

40

60

80

100

120

4 24 48 72tota

l e

xtr

ac

ted

Mn

(%

)

0

20

40

60

80

100

120

4 24 48 72

Hours of treatment

tota

l e

xtr

ac

ted

Na

(%

)

* *

*** *

* * * *

* * * *

* *

*

* *

*

*

*

* *

** *

* *

*

* * * * *

***

*

**

* *

* *

Macronutrients Micronutrients

0,0

0,5

1,0

1,5

2,0

2,5

3,0

4 24 48 72

P (

%)

control

5 mg.L -1

100 mg.L -1

0,0

0,5

1,0

1,5

2,0

2,5

3,0

4 24 48 72

Ca (

%)

0,0

0,2

0,4

0,6

0,8

1,0

4 24 48 72

Na (

%)

0,0

0,2

0,4

0,6

0,8

1,0

4 24 48 72

Mg

(%

)

0,0

0,2

0,4

0,6

0,8

1,0

4 24 48 72

Hours of treatment

S (

%)

0,0

2,5

5,0

7,5

10,0

12,5

15,0

4 24 48 72

K (

%)

0,0

0,2

0,4

0,6

0,8

1,0

4 24 48 72

x 1

00

B (

mg

L-1

)

0,0

0,3

0,5

0,8

1,0

1,3

1,5

4 24 48 72

x 1

00

Cu

(m

g L

-1)

0,0

1,0

2,0

3,0

4,0

5,0

6,0

4 24 48 72

x 1

00

Zn

(m

g L

-1)

0,0

2,5

5,0

7,5

10,0

12,5

15,0

4 24 48 72

x 1

00

Fe (

mg

L-1

)

0,0

1,0

2,0

3,0

4,0

5,0

4 24 48 72

x 1

00

Mn

(m

g L

-1)

Fe (

mg

L-1)

Zn

(mg

L-1)

Cu

(m

gL

-1)

B (

mg

L-1)

Mn

(mg

L-1)

Macronutrients Micronutrients

**

**

**

**

**

**

**

**

***** **

*

*

*

**

**

* *

*

** **

* *

* *

* *

** *

***

**

**

**

0,0

0,5

1,0

1,5

2,0

2,5

3,0

4 24 48 72

P (

%)

control

5 mg.L -1

100 mg.L -1

0,0

0,5

1,0

1,5

2,0

2,5

3,0

4 24 48 72

Ca (

%)

0,0

0,2

0,4

0,6

0,8

1,0

4 24 48 72

Na (

%)

0,0

0,2

0,4

0,6

0,8

1,0

4 24 48 72

Mg

(%

)

0,0

0,2

0,4

0,6

0,8

1,0

4 24 48 72

Hours of treatment

S (

%)

0,0

2,5

5,0

7,5

10,0

12,5

15,0

4 24 48 72

K (

%)

0,0

0,2

0,4

0,6

0,8

1,0

4 24 48 72

x 1

00

B (

mg

L-1

)

0,0

0,3

0,5

0,8

1,0

1,3

1,5

4 24 48 72

x 1

00

Cu

(m

g L

-1)

0,0

1,0

2,0

3,0

4,0

5,0

6,0

4 24 48 72

x 1

00

Zn

(m

g L

-1)

0,0

2,5

5,0

7,5

10,0

12,5

15,0

4 24 48 72

x 1

00

Fe (

mg

L-1

)

0,0

1,0

2,0

3,0

4,0

5,0

4 24 48 72

x 1

00

Mn

(m

g L

-1)

Fe (

mg

L-1)

Zn

(mg

L-1)

Cu

(m

gL

-1)

B (

mg

L-1)

Mn

(mg

L-1)

Macronutrients Micronutrients

0,0

0,5

1,0

1,5

2,0

2,5

3,0

4 24 48 72

P (

%)

control

5 mg.L -1

100 mg.L -1

0,0

0,5

1,0

1,5

2,0

2,5

3,0

4 24 48 72

Ca (

%)

0,0

0,2

0,4

0,6

0,8

1,0

4 24 48 72

Na (

%)

0,0

0,2

0,4

0,6

0,8

1,0

4 24 48 72

Mg

(%

)

0,0

0,2

0,4

0,6

0,8

1,0

4 24 48 72

Hours of treatment

S (

%)

0,0

2,5

5,0

7,5

10,0

12,5

15,0

4 24 48 72

K (

%)

0,0

0,2

0,4

0,6

0,8

1,0

4 24 48 72

x 1

00

B (

mg

L-1

)

0,0

0,3

0,5

0,8

1,0

1,3

1,5

4 24 48 72

x 1

00

Cu

(m

g L

-1)

0,0

1,0

2,0

3,0

4,0

5,0

6,0

4 24 48 72

x 1

00

Zn

(m

g L

-1)

0,0

2,5

5,0

7,5

10,0

12,5

15,0

4 24 48 72

x 1

00

Fe (

mg

L-1

)

0,0

1,0

2,0

3,0

4,0

5,0

4 24 48 72

x 1

00

Mn

(m

g L

-1)

Fe (

mg

L-1)

Zn

(mg

L-1)

Cu

(m

gL

-1)

B (

mg

L-1)

Mn

(mg

L-1)

0,0

0,5

1,0

1,5

2,0

2,5

3,0

4 24 48 72

P (

%)

control

5 mg.L -1

100 mg.L -1

0,0

0,5

1,0

1,5

2,0

2,5

3,0

4 24 48 72

Ca (

%)

0,0

0,2

0,4

0,6

0,8

1,0

4 24 48 72

Na (

%)

0,0

0,2

0,4

0,6

0,8

1,0

4 24 48 72

Mg

(%

)

0,0

0,2

0,4

0,6

0,8

1,0

4 24 48 72

Hours of treatment

S (

%)

0,0

2,5

5,0

7,5

10,0

12,5

15,0

4 24 48 72

K (

%)

0,0

0,2

0,4

0,6

0,8

1,0

4 24 48 72

x 1

00

B (

mg

L-1

)

0,0

0,3

0,5

0,8

1,0

1,3

1,5

4 24 48 72

x 1

00

Cu

(m

g L

-1)

0,0

1,0

2,0

3,0

4,0

5,0

6,0

4 24 48 72

x 1

00

Zn

(m

g L

-1)

0,0

2,5

5,0

7,5

10,0

12,5

15,0

4 24 48 72

x 1

00

Fe (

mg

L-1

)

0,0

1,0

2,0

3,0

4,0

5,0

4 24 48 72

x 1

00

Mn

(m

g L

-1)

0,0

0,5

1,0

1,5

2,0

2,5

3,0

4 24 48 72

P (

%)

control

5 mg.L -1

100 mg.L -1

0,0

0,5

1,0

1,5

2,0

2,5

3,0

4 24 48 72

Ca (

%)

0,0

0,2

0,4

0,6

0,8

1,0

4 24 48 72

Na (

%)

0,0

0,2

0,4

0,6

0,8

1,0

4 24 48 72

Mg

(%

)

0,0

0,2

0,4

0,6

0,8

1,0

4 24 48 72

Hours of treatment

S (

%)

0,0

2,5

5,0

7,5

10,0

12,5

15,0

4 24 48 72

K (

%)

0,0

0,2

0,4

0,6

0,8

1,0

4 24 48 72

x 1

00

B (

mg

L-1

)

0,0

0,3

0,5

0,8

1,0

1,3

1,5

4 24 48 72

x 1

00

Cu

(m

g L

-1)

0,0

1,0

2,0

3,0

4,0

5,0

6,0

4 24 48 72

x 1

00

Zn

(m

g L

-1)

0,0

2,5

5,0

7,5

10,0

12,5

15,0

4 24 48 72

x 1

00

Fe (

mg

L-1

)

0,0

1,0

2,0

3,0

4,0

5,0

4 24 48 72

x 1

00

Mn

(m

g L

-1)

Fe (

mg

L-1)

Zn

(mg

L-1)

Cu

(m

gL

-1)

B (

mg

L-1)

Mn

(mg

L-1)

Macronutrients Micronutrients

**

**

**

**

**

**

**

**

***** **

*

*

*

**

**

* *

*

** **

* *

* *

* *

** *

***

**

**

**

Macronutrients Micronutrients

Shoot

Root

Page 33: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,

Root-shoot signaling crosstalk

Regarding de relationships between the PHA effects on IAA, Ethylene, NO in root and PHA-induced shoot growth

Mora et al., JPGR 2014

Shoot Fresh Weight (g)

Control ̶ PHA 4.71 ± 0.87

Control+ PHA 6.81 ± 0.88

PCIB 3.83± 0.0.51

PCIB + PHA 4.62 ± 0.29

PTIO 3.83 ± 0.40

PTIO + PHA 4.50 ± 0.35

Cobalt 5.90 ± 0.52

Cobalt + PHA 6.33 ± 0.47

STS 5.36 ± 0.31

STS + PHA 6.32 ± 0.77

Page 34: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,

(Mora et al. 2012, 2014)

(Mora et al. 2010)

(Jannin et al. 2012)

Page 35: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,

• Some authors have described the ABA action on water-plant

relationships (Hose et al., 2000; Thompson et al. 2007) through

aquaporins

• When aquaporins channels are opened, cell to cell water pathway

increases and root hydraulic conductivity (Lpr) is enhanced

• As consequence a higher movement of water and nutrients is observed

from root to shoot

Page 36: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,

Experiment with HA measuring Lpr, ABA and aquoporins was carried out in

order to explore the hypothetical HA action through ABA.

This experiment was completed using Fluridone (Fld) a ABA synthesis inhibitor

Control HA

Nutrient

solution

Nutrient solution +

100 ppm Leonardite HA

Fld Fld + HA

Nutrient solution +

10 µM Fld

Nutrient solution +

10 µM Fld +

100 ppm Leonardite HA Olaetxea et al., PP 2015

Page 37: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,
Page 38: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,

Lpr

(Olaetxea et al. 2015)

Page 39: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,
Page 40: Roberto 1Baigorri & José M García-Mina - Acefer · Baigorri et al., J. Phys Chem B., 2007 . Intrinsic Factors Extrinsic Factors 1ª - 3ª Structural features Substrate characteristics,