Green spathe of peace lily (Spathiphyllum wallisii): An assimilate source for developing fruit

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F19%3A00005386" target="_blank" >RIV/00027006:_____/19:00005386 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989592:15310/19:73597036

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/abs/pii/S0254629918323822" target="_blank" >https://www.sciencedirect.com/science/article/abs/pii/S0254629918323822</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.sajb.2019.04.014" target="_blank" >10.1016/j.sajb.2019.04.014</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Green spathe of peace lily (Spathiphyllum wallisii): An assimilate source for developing fruit

Popis výsledku v původním jazyce

Peace lily (Spathiphyllumwallisii Regel) is a herbaceous, commercially important ornamental plant characterized by greening of its originally white spathe during a post-anthesis period and fruit development. It is a useful model plant for gaining insight into source-sink relationship. To clarify what is the triggering signal for spathe greening and its potential physiological role, the greening process has been examined in fertilized vs unfertilized and decapitated (with spadix removed) plants. Results showed that spathe of fertilized plants is viable for a longer period of time and greening process is more intensive in comparison with decapitated or unfertilized plants. Greening process comprised chloroplast differentiation as well as chlorophyll accumulation, and resulted in the photosynthetically active organs. Photosynthesis performance index (PIABS) of spathe in fertilized flowers was significantly higher than that in unfertilized and decapitated plants, indicating its better overall photosynthetic performance. Spathe removal during fruit development revealed approximately 30% smaller fruits in comparison with intact ones, implicating that green spathe contribute significantly as assimilate source for developing fruits. Cytokinin analysis showed that t-Z-type cytokinins were the most abundant in the spadix (t-Z and t-ZR) and the greening spathe (t-ZR), while overall cytokinin pool was significantly lower in the spathe of the decapitated plants. Exogenous treatment of spathe in decapitated plants with t-Z enhanced the intensity of greening. We may conclude that spathe greening in peace lily is genetically programmed process that may bemediated by fructification and, in part, by cytokinins originated in the developing fruitwhich was confirmed herein for the first time. (C) 2019 SAAB. Published by Elsevier B.V. All rights reserved.

Název v anglickém jazyce

Green spathe of peace lily (Spathiphyllum wallisii): An assimilate source for developing fruit

Popis výsledku anglicky

Peace lily (Spathiphyllumwallisii Regel) is a herbaceous, commercially important ornamental plant characterized by greening of its originally white spathe during a post-anthesis period and fruit development. It is a useful model plant for gaining insight into source-sink relationship. To clarify what is the triggering signal for spathe greening and its potential physiological role, the greening process has been examined in fertilized vs unfertilized and decapitated (with spadix removed) plants. Results showed that spathe of fertilized plants is viable for a longer period of time and greening process is more intensive in comparison with decapitated or unfertilized plants. Greening process comprised chloroplast differentiation as well as chlorophyll accumulation, and resulted in the photosynthetically active organs. Photosynthesis performance index (PIABS) of spathe in fertilized flowers was significantly higher than that in unfertilized and decapitated plants, indicating its better overall photosynthetic performance. Spathe removal during fruit development revealed approximately 30% smaller fruits in comparison with intact ones, implicating that green spathe contribute significantly as assimilate source for developing fruits. Cytokinin analysis showed that t-Z-type cytokinins were the most abundant in the spadix (t-Z and t-ZR) and the greening spathe (t-ZR), while overall cytokinin pool was significantly lower in the spathe of the decapitated plants. Exogenous treatment of spathe in decapitated plants with t-Z enhanced the intensity of greening. We may conclude that spathe greening in peace lily is genetically programmed process that may bemediated by fructification and, in part, by cytokinins originated in the developing fruitwhich was confirmed herein for the first time. (C) 2019 SAAB. Published by Elsevier B.V. All rights reserved.

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

2019

Kód důvěrnosti údajů

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

Název periodika

South African Journal of Botany

ISSN

0254-6299

e-ISSN

1727-9321

Svazek periodika

124

Číslo periodika v rámci svazku

AUG 2019

Stát vydavatele periodika

ZA - Jihoafrická republika

Počet stran výsledku

9

Strana od-do

54-62

Kód UT WoS článku

000478678800010

EID výsledku v databázi Scopus

2-s2.0-85065543251