Hydathode trichomes actively secreting water from leaves play a key role in the physiology and evolution of root-parasitic rhinanthoid Orobanchaceae

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F15%3A43888962" target="_blank" >RIV/60076658:12310/15:43888962 - isvavai.cz</a>

Alternative codes found

RIV/67985939:_____/15:00447992

Result on the web

<a href="http://aob.oxfordjournals.org/content/116/1/61" target="_blank" >http://aob.oxfordjournals.org/content/116/1/61</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/aob/mcv065" target="_blank" >10.1093/aob/mcv065</a>

Result language

angličtina

Original language name

Hydathode trichomes actively secreting water from leaves play a key role in the physiology and evolution of root-parasitic rhinanthoid Orobanchaceae

Original language description

We measured respiratory cost of active water secretion by hemiparazitic Rhinanthus alectorolophus. Night-time rates of respiration and transpiration and the presence of guttation drops were positively correlated, which is a clear indicator of hydathode trichome activity. Subsequent physiological measurements on older, flowering plants indicated neither intense guttation nor the presence of correlations. This study provides the first unequivocal evidence for the physiological role of the hydathode trichomes in active water secretion in the rhinanthoid Orobanchaceae. Depending on the concentration of organic elements calculated to be in the host xylem sap, the direct effect of water secretion on carbon balance ranges from close to neutral to positive. However, it is likely to be positive in the xylem-only feeding holoparasites of the genus Lathraea, which is closely related to Rhinanthus. Thus, water secretion by the hydathodes might be viewed as a physiological pre-adaptation in the evo

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

EF - Botany

OECD FORD branch

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Project

<a href="/en/project/GAP505%2F12%2F1390" target="_blank" >GAP505/12/1390: Biology of hemiparasitic Rhinanthoid Orobanchaceae: scaling up from physiology to community level processes</a><br>

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2015

Confidentiality

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

Name of the periodical

Annals of Botany

ISSN

0305-7364

e-ISSN

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Volume of the periodical

116

Issue of the periodical within the volume

1

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

61-68

UT code for WoS article

000357423200006

EID of the result in the Scopus database

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