Moss stomata do not respond to light and CO2 concentration but facilitate carbon uptake by sporophytes: a gas exchange, stomatal aperture, and C-13-labelling study

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F21%3A43903218" target="_blank" >RIV/60076658:12310/21:43903218 - isvavai.cz</a>

Result on the web

<a href="https://nph.onlinelibrary.wiley.com/doi/10.1111/nph.17208" target="_blank" >https://nph.onlinelibrary.wiley.com/doi/10.1111/nph.17208</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/nph.17208" target="_blank" >10.1111/nph.17208</a>

Result language

angličtina

Original language name

Moss stomata do not respond to light and CO2 concentration but facilitate carbon uptake by sporophytes: a gas exchange, stomatal aperture, and C-13-labelling study

Original language description

Stomata exert control on fluxes of CO2 and water (H2O) in the majority of vascular plants and thus are pivotal for planetary fluxes of carbon and H2O. However, in mosses, the significance and possible function of the sporophytic stomata are not well understood, hindering understanding of the ancestral function and evolution of these key structures of land plants. Infrared gas analysis and (CO2)-C-13 labelling, with supporting data from gravimetry and optical and scanning electron microscopy, were used to measure CO2 assimilation and water exchange on young, green, +/- fully expanded capsules of 11 moss species with a range of stomatal numbers, distributions, and aperture sizes. Moss sporophytes are effectively homoiohydric. In line with their open fixed apertures, moss stomata, contrary to those in tracheophytes, do not respond to light and CO2 concentration. Whereas the sporophyte cuticle is highly impermeable to gases, stomata are the predominant sites of (CO2)-C-13 entry and H2O loss in moss sporophytes, and CO2 assimilation is closely linked to total stomatal surface areas. Higher photosynthetic autonomy of moss sporophytes, consequent on the presence of numerous stomata, may have been the key to our understanding of evolution of large, gametophyte-independent sporophytes at the onset of plant terrestrialization.

Czech name

—

Czech description

—

Type

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

CEP classification

—

OECD FORD branch

10611 - Plant sciences, botany

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2021

Confidentiality

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

Name of the periodical

New Phytologist

ISSN

0028-646X

e-ISSN

—

Volume of the periodical

230

Issue of the periodical within the volume

5

Country of publishing house

GB - UNITED KINGDOM

Number of pages

14

Pages from-to

1815-1828

UT code for WoS article

000627483300001

EID of the result in the Scopus database

2-s2.0-85102289297