Divergence in cold stress response in yacon [Smallanthus sonchifolius (Poepp. and Endl.) H. Rob.] clones with different ploidy levels

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F25%3A10178061" target="_blank" >RIV/00027006:_____/25:10178061 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60460709:41210/25:102686 RIV/60460709:41340/25:102686

Výsledek na webu

<a href="https://www.sciencedirect.com/journal/south-african-journal-of-botany/vol/180/suppl/C" target="_blank" >https://www.sciencedirect.com/journal/south-african-journal-of-botany/vol/180/suppl/C</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.sajb.2025.03.053" target="_blank" >10.1016/j.sajb.2025.03.053</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Divergence in cold stress response in yacon [Smallanthus sonchifolius (Poepp. and Endl.) H. Rob.] clones with different ploidy levels

Popis výsledku v původním jazyce

This study examines the effect of cold stress on the morphological, physiological and biochemical response of two yacon clones; an octoploid (2n = 58; designated as ECU 41) and a dodecaploid (2n = 87; designated as PER 14), with young plants being included in the study. Overall, the dodecaploid was more cold stress tolerant then octoploid. Cold stress caused a significant decrease in physiological variables such as Fv/Fm, gs, E, and PN in both clones, where more susceptible clone was ECU 41. In this clone, PN and E decreased with stress conditions by 20.63 and 66.67 % respectively. Further reductions of 32.81 % were observed in this clone for Fv/Fm and 66.67 % for gs. Pigments and RWC decreased at 336 h for both clones, and electrolyte leakage was higher in treated clones than untreated where the % difference after 336 h was 28.74 (PER 14) and 64.35 (ECU 41). Biochemical assay showed that cold stress increased MDA, proline, total phenolics, antioxidants, and flavonoids in plants compared to those under control conditions, with ECU 41 accumulating more than PER 14. Increased proline content by 182.88 % for ECU 41 is related to the resistance of this clone to low temperatures. Similarly, an increase of 80.31 % in MDA is a signal of membrane damage and thus lower stress resistance for ECU 41 as compared to 18.66 % for PER 14. This research provides an insight into young yacon plant responses at the beginning of the vegetative growth period which tends to be colder in many regions where yacon had been distributed to. Thus, it can be a limiting factor for cultivation and sufficient growing period length. (c) 2025 Published by Elsevier B.V. on behalf of SAAB.

Název v anglickém jazyce

Divergence in cold stress response in yacon [Smallanthus sonchifolius (Poepp. and Endl.) H. Rob.] clones with different ploidy levels

Popis výsledku anglicky

This study examines the effect of cold stress on the morphological, physiological and biochemical response of two yacon clones; an octoploid (2n = 58; designated as ECU 41) and a dodecaploid (2n = 87; designated as PER 14), with young plants being included in the study. Overall, the dodecaploid was more cold stress tolerant then octoploid. Cold stress caused a significant decrease in physiological variables such as Fv/Fm, gs, E, and PN in both clones, where more susceptible clone was ECU 41. In this clone, PN and E decreased with stress conditions by 20.63 and 66.67 % respectively. Further reductions of 32.81 % were observed in this clone for Fv/Fm and 66.67 % for gs. Pigments and RWC decreased at 336 h for both clones, and electrolyte leakage was higher in treated clones than untreated where the % difference after 336 h was 28.74 (PER 14) and 64.35 (ECU 41). Biochemical assay showed that cold stress increased MDA, proline, total phenolics, antioxidants, and flavonoids in plants compared to those under control conditions, with ECU 41 accumulating more than PER 14. Increased proline content by 182.88 % for ECU 41 is related to the resistance of this clone to low temperatures. Similarly, an increase of 80.31 % in MDA is a signal of membrane damage and thus lower stress resistance for ECU 41 as compared to 18.66 % for PER 14. This research provides an insight into young yacon plant responses at the beginning of the vegetative growth period which tends to be colder in many regions where yacon had been distributed to. Thus, it can be a limiting factor for cultivation and sufficient growing period length. (c) 2025 Published by Elsevier B.V. on behalf of SAAB.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

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

180

Číslo periodika v rámci svazku

MAY 2025

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

11

Strana od-do

751-761

Kód UT WoS článku

001463102600001

EID výsledku v databázi Scopus

2-s2.0-105001576985