Effect of Plant Growth Regulators on Protease Activity in Forest Floor of Norway Spruce Stand

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F21%3A43919997" target="_blank" >RIV/62156489:43410/21:43919997 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.3390/f12060665" target="_blank" >https://doi.org/10.3390/f12060665</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/f12060665" target="_blank" >10.3390/f12060665</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of Plant Growth Regulators on Protease Activity in Forest Floor of Norway Spruce Stand

Popis výsledku v původním jazyce

Soil proteases are involved in organic matter transformation processes and, thus, influence ecosystem nutrient turnovers. Phytohormones, similarly to proteases, are synthesized and secreted into soil by fungi and microorganisms, and regulate plant rhizosphere activity. The aim of this study was to determine the effect of auxins, cytokinins, ethephon, and chlorocholine chloride on spruce forest floor protease activity. It was concluded that the presence of auxins stimulated native proteolytic activity, specifically synthetic auxin 2-naphthoxyacetic acid (16% increase at added quantity of 5 mu g) and naturally occurring indole-3-acetic acid (18%, 5 mu g). On the contrary, cytokinins, ethephon and chlorocholine chloride inhibited native soil protease activity, where ethephon (36% decrease at 50 mu g) and chlorocholine chloride (34%, 100 mu g) showed the highest inhibitory effects. It was concluded that negative phytohormonal effects on native proteolytic activity may slow down organic matter decomposition rates and hence complicate plant nutrition. The study enhances the understanding of rhizosphere exudate effects on soil microbial activity and soil nitrogen cycle.

Název v anglickém jazyce

Effect of Plant Growth Regulators on Protease Activity in Forest Floor of Norway Spruce Stand

Popis výsledku anglicky

Soil proteases are involved in organic matter transformation processes and, thus, influence ecosystem nutrient turnovers. Phytohormones, similarly to proteases, are synthesized and secreted into soil by fungi and microorganisms, and regulate plant rhizosphere activity. The aim of this study was to determine the effect of auxins, cytokinins, ethephon, and chlorocholine chloride on spruce forest floor protease activity. It was concluded that the presence of auxins stimulated native proteolytic activity, specifically synthetic auxin 2-naphthoxyacetic acid (16% increase at added quantity of 5 mu g) and naturally occurring indole-3-acetic acid (18%, 5 mu g). On the contrary, cytokinins, ethephon and chlorocholine chloride inhibited native soil protease activity, where ethephon (36% decrease at 50 mu g) and chlorocholine chloride (34%, 100 mu g) showed the highest inhibitory effects. It was concluded that negative phytohormonal effects on native proteolytic activity may slow down organic matter decomposition rates and hence complicate plant nutrition. The study enhances the understanding of rhizosphere exudate effects on soil microbial activity and soil nitrogen cycle.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40102 - Forestry

Projekt

<a href="/cs/project/TA04020888" target="_blank" >TA04020888: Bezkontaktní monitorování a časoprostorové modelování variability vybraných diferenciačních vlastností půdy</a><br>

Návaznosti

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

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Forests

ISSN

1999-4907

e-ISSN

—

Svazek periodika

12

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

6

Strana od-do

665

Kód UT WoS článku

000666688400001

EID výsledku v databázi Scopus

2-s2.0-85107632687