Stomatal function, density and pattern, and CO2 assimilation in Arabidopsis thaliana tmm1 and sdd1-1 mutants

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F17%3AA1801NNR" target="_blank" >RIV/61988987:17310/17:A1801NNR - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60077344:_____/17:00479757 RIV/60076658:12310/17:43895592 RIV/61989100:27710/17:10237486

Výsledek na webu

<a href="http://onlinelibrary.wiley.com/doi/10.1111/plb.12577/abstract?systemMessage=Wiley+Online+Library+will+be+unavailable+on+Saturday+and+Sunday+i.e+16th+and+17th+September+at+3%3A00+EDT+%2F+8%3A00+BST+%2F+12%3A30+IST+%2F+15%3A00+SGT+for+5+hours+and+3hours+fo" target="_blank" >http://onlinelibrary.wiley.com/doi/10.1111/plb.12577/abstract?systemMessage=Wiley+Online+Library+will+be+unavailable+on+Saturday+and+Sunday+i.e+16th+and+17th+September+at+3%3A00+EDT+%2F+8%3A00+BST+%2F+12%3A30+IST+%2F+15%3A00+SGT+for+5+hours+and+3hours+fo</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/plb.12577" target="_blank" >10.1111/plb.12577</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Stomatal function, density and pattern, and CO2 assimilation in Arabidopsis thaliana tmm1 and sdd1-1 mutants

Popis výsledku v původním jazyce

Stomata modulate the exchange of water and CO2 between plant and atmosphere. Although stomatal density is known to affect CO2 diffusion into the leaf and thus photosynthetic rate, the effect of stomatal density and patterning on CO2 assimilation is not fully understood.We used wild-types Col-0 and C24 and stomatal mutants sdd1-1 and tmm1 of Arabidopsis thaliana, differing in stomatal density and pattern, to study the effects of these variations on both stomatal and mesophyll conductance and CO2 assimilation rate. Anatomical parameters of stomata, leaf temperature, and carbon isotope discrimination were also assessed.Our results indicate that increased stomatal density enhanced stomatal conductance in sdd1 1 plants with no effect on photosynthesis, due to both unchanged photosynthetic capacity and decreased mesophyll conductance. Clustering (abnormal patterning formed by clusters of two or more stomata) and a highly unequal distribution of stomata between the adaxial and abaxial leaf sides in tmm1 mutants also had no effect on photosynthesis. Except at very high stomatal densities, stomatal conductance and water loss were proportional to stomatal density. Stomatal formation in clusters reduced stomatal dynamics and their operational range as well as the efficiency of CO2 transport. Stomatal development can be linked to mesophyll conductance for CO2.

Název v anglickém jazyce

Stomatal function, density and pattern, and CO2 assimilation in Arabidopsis thaliana tmm1 and sdd1-1 mutants

Popis výsledku anglicky

Stomata modulate the exchange of water and CO2 between plant and atmosphere. Although stomatal density is known to affect CO2 diffusion into the leaf and thus photosynthetic rate, the effect of stomatal density and patterning on CO2 assimilation is not fully understood.We used wild-types Col-0 and C24 and stomatal mutants sdd1-1 and tmm1 of Arabidopsis thaliana, differing in stomatal density and pattern, to study the effects of these variations on both stomatal and mesophyll conductance and CO2 assimilation rate. Anatomical parameters of stomata, leaf temperature, and carbon isotope discrimination were also assessed.Our results indicate that increased stomatal density enhanced stomatal conductance in sdd1 1 plants with no effect on photosynthesis, due to both unchanged photosynthetic capacity and decreased mesophyll conductance. Clustering (abnormal patterning formed by clusters of two or more stomata) and a highly unequal distribution of stomata between the adaxial and abaxial leaf sides in tmm1 mutants also had no effect on photosynthesis. Except at very high stomatal densities, stomatal conductance and water loss were proportional to stomatal density. Stomatal formation in clusters reduced stomatal dynamics and their operational range as well as the efficiency of CO2 transport. Stomatal development can be linked to mesophyll conductance for CO2.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10611 - Plant sciences, botany

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

PLANT BIOLOGY

ISSN

1435-8603

e-ISSN

—

Svazek periodika

19

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

689-701

Kód UT WoS článku

000407024500003

EID výsledku v databázi Scopus

2-s2.0-85020448411