The Dynamics of Xylem Sap pH under Drought: a Universal
Response in Herbs?

J 2016

The Dynamics of Xylem Sap pH under Drought: a Universal Response in Herbs?

GLOSER, Vít, Halyna KOROVETSKA, Ana Isabel Martín VERTEDOR, Martina HÁJÍČKOVÁ, Zbyněk PROKOP et. al.

Základní údaje

Originální název

The Dynamics of Xylem Sap pH under Drought: a Universal Response in Herbs?

Autoři

GLOSER, Vít (203 Česká republika, garant, domácí), Halyna KOROVETSKA (804 Ukrajina, domácí), Ana Isabel Martín VERTEDOR (724 Španělsko, domácí), Martina HÁJÍČKOVÁ (203 Česká republika, domácí), Zbyněk PROKOP (203 Česká republika, domácí), Sally WILKINSON (826 Velká Británie a Severní Irsko) a William DAVIES (826 Velká Británie a Severní Irsko)

Vydání

PLANT AND SOIL, Springer, 2016, 0032-079X

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

30105 Physiology

Stát vydavatele

Nizozemské království

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 3.052

Kód RIV

RIV/00216224:14310/16:00092836

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.1007/s11104-016-2962-6

UT WoS

000390034900018

Klíčová slova anglicky

Soil drying; Xylem sap; Nitrate; Malate

Štítky

AKR, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 14. 4. 2017 14:14, Ing. Andrea Mikešková

Anotace

V originále

Long distance signals in xylem from roots to leaves are important in plant response to drought stress. Abscisic acid (ABA) plays a key role in drought signaling in plants but apoplastic pH may modulate its effect by distributing ABA into various compartments in leaves. We aimed to reveal the dynamics of changes in sap pH and its relationships with the transport of inorganic and organic ions in eight herbaceous plant species under continuously declining soil water content. We tested several hypotheses related to the mechanism of pH changes in xylem. We used a pressure chamber to collect xylem sap and to measure of leaf/stem water potential at various stages of soil drying. We measured pH and concentrations of the most abundant inorganic (NO3, SO42, PO43 and Cl) and organic (malate and citrate) anions in xylem sap. Species differed considerably in the dynamics of pH changes in xylem in drying soil. Changes in xylem sap pH during drying did not relate to the nitrogen assimilation strategy but may be affected by sap flow rate. Simultaneous changes in the concentrations of inorganic and organic anions were highly species specific. High variability among species in the observed relationships in response to drought indicates that comparisons among different studies and the generalization of results should be made with caution.

Citovat

GLOSER, Vít, Halyna KOROVETSKA, Ana Isabel Martín VERTEDOR, Martina HÁJÍČKOVÁ, Zbyněk PROKOP, Sally WILKINSON a William DAVIES. The Dynamics of Xylem Sap pH under Drought: a Universal Response in Herbs? PLANT AND SOIL. Springer, 2016, roč. 409, 1-2, s. 259-272. ISSN 0032-079X. Dostupné z: https://dx.doi.org/10.1007/s11104-016-2962-6.

@article{1367538,
   author = {Gloser, Vít and Korovetska, Halyna and Vertedor, Ana Isabel Martín and Hájíčková, Martina and Prokop, Zbyněk and Wilkinson, Sally and Davies, William},
   article_number = {1-2},
   doi = {http://dx.doi.org/10.1007/s11104-016-2962-6},
   keywords = {Soil drying; Xylem sap; Nitrate; Malate},
   language = {eng},
   issn = {0032-079X},
   journal = {PLANT AND SOIL},
   title = {The Dynamics of Xylem Sap pH under Drought: a Universal Response in Herbs?},
   volume = {409},
   year = {2016}
}

TY  - JOUR
ID  - 1367538
AU  - Gloser, Vít - Korovetska, Halyna - Vertedor, Ana Isabel Martín - Hájíčková, Martina - Prokop, Zbyněk - Wilkinson, Sally - Davies, William
PY  - 2016
TI  - The Dynamics of Xylem Sap pH under Drought: a Universal Response in Herbs?
JF  - PLANT AND SOIL
VL  - 409
IS  - 1-2
SP  - 259-272
EP  - 259-272
PB  - Springer
SN  - 0032079X
KW  - Soil drying
KW  - Xylem sap
KW  - Nitrate
KW  - Malate
N2  - Long distance signals in xylem from roots to leaves are important in plant response to drought stress. Abscisic acid (ABA) plays a key role in drought signaling in plants but apoplastic pH may modulate its effect by distributing ABA into various compartments in leaves. We aimed to reveal the dynamics of changes in sap pH and its relationships with the transport of inorganic and organic ions in eight herbaceous plant species under continuously declining soil water content. We tested several hypotheses related to the mechanism of pH changes in xylem. We used a pressure chamber to collect xylem sap and to measure of leaf/stem water potential at various stages of soil drying. We measured pH and concentrations of the most abundant inorganic (NO3, SO42, PO43 and Cl) and organic (malate and citrate) anions in xylem sap. Species differed considerably in the dynamics of pH changes in xylem in drying soil. Changes in xylem sap pH during drying did not relate to the nitrogen assimilation strategy but may be affected by sap flow rate. Simultaneous changes in the concentrations of inorganic and organic anions were highly species specific. High variability among species in the observed relationships in response to drought indicates that comparisons among different studies and the generalization of results should be made with caution.
ER  -

GLOSER, Vít, Halyna KOROVETSKA, Ana Isabel Martín VERTEDOR, Martina HÁJÍČKOVÁ, Zbyněk PROKOP, Sally WILKINSON a William DAVIES. The Dynamics of Xylem Sap pH under Drought: a Universal Response in Herbs? \textit{PLANT AND SOIL}. Springer, 2016, roč.~409, 1-2, s.~259-272. ISSN~0032-079X. Dostupné z: https://dx.doi.org/10.1007/s11104-016-2962-6.

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