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- Title
Mitigation of chilling injury in sweet potato roots subjected to lowtemperature conditioning.
- Authors
Martins Véras, Mário Leno; Oliveira de Araújo, Nicolas; de Jesus Tello, Jean Paulo; Sousa Santos, Mirelle Nayana; Ferreira de Araújo, Fernanda; Rodrigo Krause, Marcelo; Luiz Finger, Fernando
- Abstract
In many plant tissues, low-temperature conditioning (LTC) has been used to induce postharvest adaptive responses to overcome chilling injury (CI) consequences. This study aimed to investigate whether LTC is effective in reducing the incidence of chilling injury (CI) in sweet potato cultivars. Sweet potato roots BRS Cuia and BRS Rubissol were submitted to cold storage (6 °C or 13 °C) and LTC (10 °C for 7 d, followed by second storage at 6 °C). LTC increased the tolerance of sweet potato roots to CI via antioxidant system activation, mainly in cv. BRS Rubissol, which was markedly associated with higher content of both total soluble phenolics and proline, as well as increased activity of phenylalanine ammonium lyase. Moreover, no either external or internal injuries were observed in the LTC roots, maintaining the quality for processing, which indicates that the LTC is effective in mitigating chilling injury in Brazilian sweet potato cultivars.
- Subjects
SWEET potatoes; POTATOES; PLANT cells &; tissues; COLD storage; OXIDATIVE stress; WOUNDS &; injuries; PHENYLALANINE; CULTIVARS
- Publication
Dyna, 2022, Vol 89, Issue 220, p25
- ISSN
0012-7353
- Publication type
Article
- DOI
10.15446/dyna.v89n220.97533