Antarctic Mokoshia rubra and Mokoshia mucilaginosa enhance growth and cadmium tolerance in Nicotiana species

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F25%3A00142645" target="_blank" >RIV/00216224:14310/25:00142645 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.plaphy.2025.110808" target="_blank" >https://doi.org/10.1016/j.plaphy.2025.110808</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.plaphy.2025.110808" target="_blank" >10.1016/j.plaphy.2025.110808</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Antarctic Mokoshia rubra and Mokoshia mucilaginosa enhance growth and cadmium tolerance in Nicotiana species

Popis výsledku v původním jazyce

Cadmium (Cd) contamination severely limits plant growth and agricultural productivity, emphasizing the need for sustainable approaches to mitigate heavy metal stress. This study assessed the plant growth–promoting potential of two Antarctic bacterial strains, Mokoshia rubra and M. mucilaginosa, in enhancing growth and Cd tolerance of Nicotiana tabacum and N. benthamiana. Both strains exhibited strong Cd resistance and key plant growth–promoting traits, including indole-3-acetic acid (IAA) production, phosphate solubilization, siderophore secretion, and nitrogen fixation. Inoculation with M. rubra or M. mucilaginosa mitigated Cd-induced declines in biomass, photosynthetic performance, and antioxidant capacity. Improvements in chlorophyll fluorescence parameters related to photosystem II (PSII) efficiency and in leaf spectral vitality indices indicated enhanced physiological stability under stress. Biochemical analyses further revealed that inoculated plants maintained higher chlorophyll, carotenoid, soluble sugar, and protein levels while limiting excessive accumulation of proline and total phenols. Activities of antioxidant enzymes—superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), and ascorbate peroxidase (APX)—were markedly elevated, contributing to effective reactive oxygen species (ROS) detoxification. Overall, Mokoshia strains significantly improved Cd stress tolerance in Nicotiana species, highlighting their potential as eco-friendly bioinoculants for sustainable crop production in metal-contaminated soils.

Název v anglickém jazyce

Antarctic Mokoshia rubra and Mokoshia mucilaginosa enhance growth and cadmium tolerance in Nicotiana species

Popis výsledku anglicky

Cadmium (Cd) contamination severely limits plant growth and agricultural productivity, emphasizing the need for sustainable approaches to mitigate heavy metal stress. This study assessed the plant growth–promoting potential of two Antarctic bacterial strains, Mokoshia rubra and M. mucilaginosa, in enhancing growth and Cd tolerance of Nicotiana tabacum and N. benthamiana. Both strains exhibited strong Cd resistance and key plant growth–promoting traits, including indole-3-acetic acid (IAA) production, phosphate solubilization, siderophore secretion, and nitrogen fixation. Inoculation with M. rubra or M. mucilaginosa mitigated Cd-induced declines in biomass, photosynthetic performance, and antioxidant capacity. Improvements in chlorophyll fluorescence parameters related to photosystem II (PSII) efficiency and in leaf spectral vitality indices indicated enhanced physiological stability under stress. Biochemical analyses further revealed that inoculated plants maintained higher chlorophyll, carotenoid, soluble sugar, and protein levels while limiting excessive accumulation of proline and total phenols. Activities of antioxidant enzymes—superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), and ascorbate peroxidase (APX)—were markedly elevated, contributing to effective reactive oxygen species (ROS) detoxification. Overall, Mokoshia strains significantly improved Cd stress tolerance in Nicotiana species, highlighting their potential as eco-friendly bioinoculants for sustainable crop production in metal-contaminated soils.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10611 - Plant sciences, botany

Projekt

<a href="/cs/project/LX22NPO5103" target="_blank" >LX22NPO5103: Národní institut virologie a bakteriologie</a><br>

Návaznosti

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

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Plant Physiology and Biochemistry

ISSN

0981-9428

e-ISSN

1873-2690

Svazek periodika

229

Číslo periodika v rámci svazku

December

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

21

Strana od-do

110808

Kód UT WoS článku

001634188800001

EID výsledku v databázi Scopus

2-s2.0-105024728365