Biostimulatory effects of amino acids on phenylalanine ammonia lyase, capsaicin synthase, and peroxidase activities in Capsicum baccatum L.

Zamljen, Tilen (avtor), Medič, Aljaž (avtor), Hudina, Metka (avtor), Veberič, Robert (avtor), Slatnar, Ana (avtor)

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.

• Jezik: Angleški jezik
• Ključne besede: biostimulants, capsaicin, enzyme, trans-cinnamic acid, time course, amino acids, Capsicum baccatum
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: BF - Biotehniška fakulteta
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2022
• Št. strani: 11 str.
• Številčenje: Vol. 11, iss. 5, art. 674
• PID: 20.500.12556/RUL-136450
• UDK: 634.5
• ISSN pri članku: 2079-7737
• DOI: 10.3390/biology11050674
• COBISS.SI-ID: 106540035
• Datum objave v RUL: 04.05.2022

Gradivo je del revije

• Naslov: Biology
• Skrajšan naslov: Biology
• Založnik: MDPI
• ISSN: 2079-7737
• COBISS.SI-ID: 523004441

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: biostimulanti, Capsicum baccatum, kapsaicin, encimi, trans-cimetova kislina

Projekti

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P4-0013
• Naslov: Hortikultura

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Program financ.: Infrastructural center
• Številka projekta: IO-0022-0481-001
• Akronim: IC RRC-AG