Early changes of the pH of the apoplast are different in leaves, stem and roots of Vicia faba L. under declining water availability

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F17%3A00476350" target="_blank" >RIV/61389030:_____/17:00476350 - isvavai.cz</a>

Alternative codes found

RIV/00216224:14310/17:00095947 RIV/61989592:15310/17:73584177

Result on the web

<a href="http://dx.doi.org/10.1016/j.plantsci.2016.11.010" target="_blank" >http://dx.doi.org/10.1016/j.plantsci.2016.11.010</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.plantsci.2016.11.010" target="_blank" >10.1016/j.plantsci.2016.11.010</a>

Result language

angličtina

Original language name

Early changes of the pH of the apoplast are different in leaves, stem and roots of Vicia faba L. under declining water availability

Original language description

Changes in pH of the apoplast have recently been discussed as an important factor in adjusting transpiration and water relations under conditions of drought via modulatory effect on abscisic acid (ABA) concentration. Using Vicia faba L., we investigated whether changes in the root, shoot and leaf apoplastic pH correlated with (1) a drought-induced reduction in transpiration and with (2) changes in ABA concentration. Transpiration, leaf water potential and ABA in leaves were measured and correlated with root and shoot xylem pH, determined by a pH microelectrode, and pH of leaf apoplast quantified by microscopy-based in vivo ratiometric analysis. Results revealed that a reduction in transpiration rate in the early phase of soil drying could not be linked with changes in the apoplastic pH via effects on the stomata-regulating hormone ABA. Moreover, drought-induced increase in pH of xylem or leaf apoplast was not the remote effect of an acropetal transport of alkaline sap from root, because root xylem acidified during progressive soil drying, whereas the shoot apoplast alkalized. We reason that other, yet unknown signalling mechanism was responsible for reduction of transpiration rate in the early phase of soil drying.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10611 - Plant sciences, botany

Project

<a href="/en/project/EE2.3.30.0037" target="_blank" >EE2.3.30.0037: Employment of Best Young Scientists for International Cooperation Empowerment</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Plant Science

ISSN

0168-9452

e-ISSN

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Volume of the periodical

255

Issue of the periodical within the volume

FEB

Country of publishing house

IE - IRELAND

Number of pages

8

Pages from-to

51-58

UT code for WoS article

000394194800006

EID of the result in the Scopus database

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