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Involvement of auxin, flavonoids and strigolactones in the different rooting ability of European chestnut (Castanea sativa) and hybrids (Castanea crenata × Castanea sativa)
ID
Kunc, Petra
(
Author
),
ID
Medič, Aljaž
(
Author
),
ID
Osterc, Gregor
(
Author
)
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https://www.mdpi.com/2223-7747/13/15/2088
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Abstract
The aim of this study was to investigate the differences between Castanea sativa Mill. and Castanea crenata Siebold & Zucc. × Castanea sativa Mill. in rooting ability in relation to endogenous levels of auxin, auxin cofactors and inhibitors that influence rooting success. Leafy cuttings of the two commercial cultivars ‘Marsol’ and ‘Maraval’ (Castanea crenata × Castanea sativa) and the native accession ‘Kozjak’ (Castanea sativa) were analyzed. Endogenous indole-3-acetic acid (IAA) concentration was assessed at the beginning of propagation (day 0); in addition, strigolactones, flavonoids, rooting ability and quality were assessed 120 days after. The concentration of endogenous IAA in ‘Maraval’ (324.34 ± 28.66 ng g$^{−1}$) and ‘Marsol’ (251.60 ± 35.44 ng g$^{−1}$) was significantly higher than in ‘Kozjak’ (112.87 ± 35.44 ng g$^{−1}$). The best rooting result was observed with the genotypes ‘Maraval’ (100.00 ± 0.00%) and ‘Marsol’ (90.48 ± 6.15%). A significantly lower strigol concentration was observed in the roots of ‘Maraval’ (75.54 ± 17.93 ng g$^{−1}$) compared with other genotypes. The total flavonoid concentration in ‘Maraval’ was significantly higher (2794.99 ± 187.13 µg g$^{−1}$) than in ‘Kozjak’ (1057.38 ± 61.05 µg g$^{−1}$). Our results indicate that the concentration of endogenous IAA has a significant influence on rooting success. The results further indicate that in the case of flavonoids and strigolactones, not only the individual compounds but also their ratio is important for rooting success. Correlation coefficients calculated between analyzed compounds and rooting success point toward specific functions of flavonoids and strigolactones in the rooting of Castanea that need to be functionally analyzed.
Language:
English
Keywords:
adventitious roots
,
phenolic compounds
,
phytohormones
,
vegetative propagation
,
woody plants
Work type:
Article
Typology:
1.01 - Original Scientific Article
Organization:
BF - Biotechnical Faculty
Publication status:
Published
Publication version:
Version of Record
Year:
2024
Number of pages:
17 str.
Numbering:
Vol. 13, iss. 15, art. 2088
PID:
20.500.12556/RUL-160069
UDC:
634
ISSN on article:
2223-7747
DOI:
10.3390/plants13152088
COBISS.SI-ID:
204387587
Publication date in RUL:
14.08.2024
Views:
87
Downloads:
8
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Record is a part of a journal
Title:
Plants
Shortened title:
Plants
Publisher:
MDPI
ISSN:
2223-7747
COBISS.SI-ID:
523345433
Licences
License:
CC BY 4.0, Creative Commons Attribution 4.0 International
Link:
http://creativecommons.org/licenses/by/4.0/
Description:
This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Secondary language
Language:
Slovenian
Keywords:
adventivne korenine
,
kostanj
,
fenolne spojine
,
koreninjenje
,
auksin
,
flavonoidi
,
strigolaktoni
Projects
Funder:
ARIS - Slovenian Research and Innovation Agency
Project number:
P4-0013
Name:
Hortikultura
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