Mineral nutrients, photosynthetic pigments and storage carbohydrates in turions of 21 aquatic plant species

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F20%3A00531390" target="_blank" >RIV/67985939:_____/20:00531390 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/20:10420149

Výsledek na webu

<a href="http://hdl.handle.net/11104/0310048" target="_blank" >http://hdl.handle.net/11104/0310048</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.aquabot.2020.103238" target="_blank" >10.1016/j.aquabot.2020.103238</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Mineral nutrients, photosynthetic pigments and storage carbohydrates in turions of 21 aquatic plant species

Popis výsledku v původním jazyce

Contents of photosynthetic pigments (chlorophyll a and b, carotenoids), storage carbohydrates (starch and five free sugars) and of mineral nutrients (N, P) were estimated in mature autumnal turions of 21 aquatic species from three different ecological groups and eight families, carbohydrates were also measured in the turions of eight species after an overwintering outdoors or in a refrigerator for 4-5 months. The mean turion N and P content was slightly higher than that reported in leaves or shoots of submerged aquatic plants. Assuming effective reutilization, >54% of the total N and >70% of the total P amount in mature turions could be theoretically allocated to newly sprouting shoots. The chlorophyll a+b contents in turions were the same to 2-6 times lower than those in adult leaves/shoots of submerged plants, but they ensure very high photosynthetic rates in sprouting turions. In mature turions, only TNC was significantly different between the rooted/unrooted species after application of a phylogenetic correction, the variability of other biochemical parameters has rather a taxonomic background. About 20% of the autumnal TNC content in turions declined over winter but the rest is available to support turion germination and sprouting. Starch and free sugars (total non-structural carbohydrates, TNC) created the main reserve substances in mature turions with variable ratios in different species.

Název v anglickém jazyce

Mineral nutrients, photosynthetic pigments and storage carbohydrates in turions of 21 aquatic plant species

Popis výsledku anglicky

Contents of photosynthetic pigments (chlorophyll a and b, carotenoids), storage carbohydrates (starch and five free sugars) and of mineral nutrients (N, P) were estimated in mature autumnal turions of 21 aquatic species from three different ecological groups and eight families, carbohydrates were also measured in the turions of eight species after an overwintering outdoors or in a refrigerator for 4-5 months. The mean turion N and P content was slightly higher than that reported in leaves or shoots of submerged aquatic plants. Assuming effective reutilization, >54% of the total N and >70% of the total P amount in mature turions could be theoretically allocated to newly sprouting shoots. The chlorophyll a+b contents in turions were the same to 2-6 times lower than those in adult leaves/shoots of submerged plants, but they ensure very high photosynthetic rates in sprouting turions. In mature turions, only TNC was significantly different between the rooted/unrooted species after application of a phylogenetic correction, the variability of other biochemical parameters has rather a taxonomic background. About 20% of the autumnal TNC content in turions declined over winter but the rest is available to support turion germination and sprouting. Starch and free sugars (total non-structural carbohydrates, TNC) created the main reserve substances in mature turions with variable ratios in different species.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10611 - Plant sciences, botany

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Aquatic Botany

ISSN

0304-3770

e-ISSN

—

Svazek periodika

165

Číslo periodika v rámci svazku

Jun 20

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

103238

Kód UT WoS článku

000548739100004

EID výsledku v databázi Scopus

2-s2.0-85083723642