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Biostimulatory effects of amino acids on phenylalanine ammonia lyase, capsaicin synthase, and peroxidase activities in Capsicum baccatum L.
ID
Zamljen, Tilen
(
Author
),
ID
Medič, Aljaž
(
Author
),
ID
Hudina, Metka
(
Author
),
ID
Veberič, Robert
(
Author
),
ID
Slatnar, Ana
(
Author
)
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MD5: 35EEAB9DD0D2802D3EFE7B308D29E732
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https://www.mdpi.com/2079-7737/11/5/674
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Abstract
Biostimulants are widely used in agriculture because they can improve fruit quality and quantity. Less is known about how biostimulants act over time in plants, in our case peppers, and how they affect the enzyme activity of important enzymes for capsaicinoid synthesis. The biostimulatory effects of amino acids on the activities of phenylalanine ammonia lyase (PAL), capsaicin synthase (CS), and peroxidase (POX) were investigated in the pericarp and placenta of the chili pepper Capsicum baccatum L. cv. “Bishop Crown” over 72 h of application. The PAL and CS activities significantly increased in the placenta after 1 h of biostimulant application, with significant increases of 130% and 16%, respectively. The POX activity remained unchanged over the full 72 h in the placenta but significantly increased after 48 h in the pericarp (+53%). Total capsaicinoids increased in the first hour of biostimulant application, by 4.30 g/kg FW in the placenta (19%) and by 0.94 g/kg FW in the pericarp (+56%). Biostimulant application also increased total and individual capsaicinoids after 48 h in the chili placenta and pericarp. With improved methods for enzymatic determination, we gained new insights into the responses of chilies to biostimulant amino acids.
Language:
English
Keywords:
biostimulants
,
capsaicin
,
enzyme
,
trans-cinnamic acid
,
time course
,
amino acids
,
Capsicum baccatum
Work type:
Article
Typology:
1.01 - Original Scientific Article
Organization:
BF - Biotechnical Faculty
Publication status:
Published
Publication version:
Version of Record
Year:
2022
Number of pages:
11 str.
Numbering:
Vol. 11, iss. 5, art. 674
PID:
20.500.12556/RUL-136450
UDC:
634.5
ISSN on article:
2079-7737
DOI:
10.3390/biology11050674
COBISS.SI-ID:
106540035
Publication date in RUL:
04.05.2022
Views:
978
Downloads:
142
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Record is a part of a journal
Title:
Biology
Shortened title:
Biology
Publisher:
MDPI
ISSN:
2079-7737
COBISS.SI-ID:
523004441
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:
biostimulanti
,
Capsicum baccatum
,
kapsaicin
,
encimi
,
trans-cimetova kislina
Projects
Funder:
ARRS - Slovenian Research Agency
Project number:
P4-0013
Name:
Hortikultura
Funder:
ARRS - Slovenian Research Agency
Funding programme:
Infrastructural center
Project number:
IO-0022-0481-001
Acronym:
IC RRC-AG
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