Abstract
The metabolite profile changes induced by Fe deficiency in leaves and xylem sap of several Strategy I plant species have been characterized. We have confirmed that Fe deficiency causes consistent changes both in the xylem sap and leaf metabolite profiles. The main changes in the xylem sap metabolite profile in response to Fe deficiency include consistent decreases in amino acids, N-related metabolites and carbohydrates, and increases in TCA cycle metabolites. In tomato, Fe resupply causes a transitory flush of xylem sap car-boxylates, but within 1day the metabolite profile of the xylem sap from Fe-deficient plants becomes similar to that of Fe-sufficient controls.The main changes in the metabolite profile of leaf extracts in response to Fe deficiency include consistent increases in amino acids and N-related metabolites, carbohydrates and TCA cycle metabolites. In leaves, selected pairs of amino acids and TCA cycle metabolites show high correlations, with the sign depending of the Fe status. These data suggest that in low photosynthesis, C-starved Fe-deficient plants anaplerotic reactions involving amino acids can be crucial for short-term survival.
| Original language | English (US) |
|---|---|
| Article number | 66 |
| Journal | Frontiers in Plant Science |
| Volume | 2 |
| Issue number | OCT |
| DOIs | |
| State | Published - Oct 25 2011 |
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Keywords
- Anaplerotic reactions
- Chlorosis
- Iron deficiency
- Leaves
- Metabolomics
- Xylem sap
ASJC Scopus subject areas
- Plant Science
Cite this
Metabolite profile changes in xylem sap and leaf extracts of strategy I plants in response to iron deficiency and resupply. / Rellán-Álvarez, Rubén; El-Jendoubi, Hamdi; Wohlgemuth, Gert; Abadía, Anunciación; Fiehn, Oliver; Abadía, Javier; Álvarez-Fernández, Ana.
In: Frontiers in Plant Science, Vol. 2, No. OCT, 66, 25.10.2011.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Metabolite profile changes in xylem sap and leaf extracts of strategy I plants in response to iron deficiency and resupply
AU - Rellán-Álvarez, Rubén
AU - El-Jendoubi, Hamdi
AU - Wohlgemuth, Gert
AU - Abadía, Anunciación
AU - Fiehn, Oliver
AU - Abadía, Javier
AU - Álvarez-Fernández, Ana
PY - 2011/10/25
Y1 - 2011/10/25
N2 - The metabolite profile changes induced by Fe deficiency in leaves and xylem sap of several Strategy I plant species have been characterized. We have confirmed that Fe deficiency causes consistent changes both in the xylem sap and leaf metabolite profiles. The main changes in the xylem sap metabolite profile in response to Fe deficiency include consistent decreases in amino acids, N-related metabolites and carbohydrates, and increases in TCA cycle metabolites. In tomato, Fe resupply causes a transitory flush of xylem sap car-boxylates, but within 1day the metabolite profile of the xylem sap from Fe-deficient plants becomes similar to that of Fe-sufficient controls.The main changes in the metabolite profile of leaf extracts in response to Fe deficiency include consistent increases in amino acids and N-related metabolites, carbohydrates and TCA cycle metabolites. In leaves, selected pairs of amino acids and TCA cycle metabolites show high correlations, with the sign depending of the Fe status. These data suggest that in low photosynthesis, C-starved Fe-deficient plants anaplerotic reactions involving amino acids can be crucial for short-term survival.
AB - The metabolite profile changes induced by Fe deficiency in leaves and xylem sap of several Strategy I plant species have been characterized. We have confirmed that Fe deficiency causes consistent changes both in the xylem sap and leaf metabolite profiles. The main changes in the xylem sap metabolite profile in response to Fe deficiency include consistent decreases in amino acids, N-related metabolites and carbohydrates, and increases in TCA cycle metabolites. In tomato, Fe resupply causes a transitory flush of xylem sap car-boxylates, but within 1day the metabolite profile of the xylem sap from Fe-deficient plants becomes similar to that of Fe-sufficient controls.The main changes in the metabolite profile of leaf extracts in response to Fe deficiency include consistent increases in amino acids and N-related metabolites, carbohydrates and TCA cycle metabolites. In leaves, selected pairs of amino acids and TCA cycle metabolites show high correlations, with the sign depending of the Fe status. These data suggest that in low photosynthesis, C-starved Fe-deficient plants anaplerotic reactions involving amino acids can be crucial for short-term survival.
KW - Anaplerotic reactions
KW - Chlorosis
KW - Iron deficiency
KW - Leaves
KW - Metabolomics
KW - Xylem sap
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UR - http://www.scopus.com/inward/citedby.url?scp=84873746765&partnerID=8YFLogxK
U2 - 10.3389/fpls.2011.00066
DO - 10.3389/fpls.2011.00066
M3 - Article
VL - 2
JO - Frontiers in Plant Science
JF - Frontiers in Plant Science
SN - 1664-462X
IS - OCT
M1 - 66
ER -