Response of the photosynthetic apparatus in the tropical fern platycerium bifurcatum to increased ozone concentration

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F19%3A00517419" target="_blank" >RIV/61389030:_____/19:00517419 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989592:15310/19:73598558

Výsledek na webu

<a href="http://dx.doi.org/10.32615/ps.2019.117" target="_blank" >http://dx.doi.org/10.32615/ps.2019.117</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.32615/ps.2019.117" target="_blank" >10.32615/ps.2019.117</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Response of the photosynthetic apparatus in the tropical fern platycerium bifurcatum to increased ozone concentration

Popis výsledku v původním jazyce

A rapid increase of ozone concentration up to the phytotoxic level is currently observed in the tropical forests. However, the effect of elevated concentration of O3 on tropical ferns and epiphytes has not yet been described and mechanisms of tolerance remain unknown. The aim of this study was to determine the physiological response of the epiphytic fern Platycerium bifurcatum to a high concentration of ozone (150 ppb). In particular, changes in the course of photosynthesis and the pigment composition of sporotrophophyll leaves were taken into account. P. bifurcatum showed high resistance to the 4-week ozone stress. The effect of ozone was an initial decrease in net photosynthesis and reduction in transpiration. Ozone tolerance mechanisms are associated with the closure of stomata and the synthesis of carotenoids and flavonoids. We found that brassinosteroids play an important role in the resistance of P. bifurcatum to ozone. In response to ozone stress an increase in 28-homocastasterone content was observed.

Název v anglickém jazyce

Response of the photosynthetic apparatus in the tropical fern platycerium bifurcatum to increased ozone concentration

Popis výsledku anglicky

A rapid increase of ozone concentration up to the phytotoxic level is currently observed in the tropical forests. However, the effect of elevated concentration of O3 on tropical ferns and epiphytes has not yet been described and mechanisms of tolerance remain unknown. The aim of this study was to determine the physiological response of the epiphytic fern Platycerium bifurcatum to a high concentration of ozone (150 ppb). In particular, changes in the course of photosynthesis and the pigment composition of sporotrophophyll leaves were taken into account. P. bifurcatum showed high resistance to the 4-week ozone stress. The effect of ozone was an initial decrease in net photosynthesis and reduction in transpiration. Ozone tolerance mechanisms are associated with the closure of stomata and the synthesis of carotenoids and flavonoids. We found that brassinosteroids play an important role in the resistance of P. bifurcatum to ozone. In response to ozone stress an increase in 28-homocastasterone content was observed.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10608 - Biochemistry and molecular biology

Projekt

<a href="/cs/project/EF16_019%2F0000827" target="_blank" >EF16_019/0000827: Rostliny jako prostředek udržitelného globálního rozvoje</a><br>

Návaznosti

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

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Photosynthetica

ISSN

0300-3604

e-ISSN

—

Svazek periodika

57

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

11

Strana od-do

1119-1129

Kód UT WoS článku

000493979800024

EID výsledku v databázi Scopus

2-s2.0-85074787711