Physiological and biochemical changes in ‘Fuyu’ persimmon buds during dormancy
ABSTRACT: This study identified physiological and biochemical changes in ‘Fuyu’ persimmon buds during dormancy. Branches were collected between March and August 2015. Dormancy was evaluated by biological testing of isolated node cuttings at 25 °C and a photoperiod of 16 h. The variables analyzed wer...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Universidade Federal de Santa Maria
2021-07-01
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| Series: | Ciência Rural |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782022000100201&tlng=en |
| _version_ | 1819261246911807488 |
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| author | Gabriely Pinto Pereira Felipe Francisco Aline José Maia Renato Vasconcelos Botelho Luiz Antonio Biasi Ruy Inacio Neiva de Carvalho Flávio Zanette |
| author_facet | Gabriely Pinto Pereira Felipe Francisco Aline José Maia Renato Vasconcelos Botelho Luiz Antonio Biasi Ruy Inacio Neiva de Carvalho Flávio Zanette |
| author_sort | Gabriely Pinto Pereira |
| collection | DOAJ |
| description | ABSTRACT: This study identified physiological and biochemical changes in ‘Fuyu’ persimmon buds during dormancy. Branches were collected between March and August 2015. Dormancy was evaluated by biological testing of isolated node cuttings at 25 °C and a photoperiod of 16 h. The variables analyzed were water content; reducing sugar content; respiratory activity; activity of superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), guaiacol peroxidase (POD) and polyphenol oxidase (PPO) enzymes; hydrogen peroxide content (H2O2) and lipid peroxidation. At the end of March 2015, the plants were already dormant, and the leaves and fruits present indicated a paradormancy effect. Induction of endodormancy may have occurred in June 2015, when chilling hours (CH) below 7.2 °C and higher CH below 12 °C began to accumulate, which coincided with the period in which there was a decrease in water content and respiratory activity, an increase in reducing sugars, a decrease in SOD, CAT, APX and PPO and an increase in H2O2. After an accumulation of 553 CH below 12 °C, the budburst capacity increased, and the buds presented increased water content, decreased reducing sugars content, increased respiratory activity, low activity in SOD, CAT, APX and POD and high levels of H2O2. |
| first_indexed | 2024-12-23T19:38:45Z |
| format | Article |
| id | doaj.art-3f9dfc77ac2a467eab9fb1af5f6b92af |
| institution | Directory Open Access Journal |
| issn | 1678-4596 |
| language | English |
| last_indexed | 2024-12-23T19:38:45Z |
| publishDate | 2021-07-01 |
| publisher | Universidade Federal de Santa Maria |
| record_format | Article |
| series | Ciência Rural |
| spelling | doaj.art-3f9dfc77ac2a467eab9fb1af5f6b92af2022-12-21T17:33:43ZengUniversidade Federal de Santa MariaCiência Rural1678-45962021-07-0152110.1590/0103-8478cr20200955Physiological and biochemical changes in ‘Fuyu’ persimmon buds during dormancyGabriely Pinto Pereirahttps://orcid.org/0000-0003-4126-7783Felipe Franciscohttps://orcid.org/0000-0003-1674-6061Aline José Maiahttps://orcid.org/0000-0003-0233-9481Renato Vasconcelos Botelhohttps://orcid.org/0000-0001-9580-2572Luiz Antonio Biasihttps://orcid.org/0000-0002-3479-8925Ruy Inacio Neiva de Carvalhohttps://orcid.org/0000-0003-3062-0166Flávio Zanettehttps://orcid.org/0000-0001-5917-6711ABSTRACT: This study identified physiological and biochemical changes in ‘Fuyu’ persimmon buds during dormancy. Branches were collected between March and August 2015. Dormancy was evaluated by biological testing of isolated node cuttings at 25 °C and a photoperiod of 16 h. The variables analyzed were water content; reducing sugar content; respiratory activity; activity of superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), guaiacol peroxidase (POD) and polyphenol oxidase (PPO) enzymes; hydrogen peroxide content (H2O2) and lipid peroxidation. At the end of March 2015, the plants were already dormant, and the leaves and fruits present indicated a paradormancy effect. Induction of endodormancy may have occurred in June 2015, when chilling hours (CH) below 7.2 °C and higher CH below 12 °C began to accumulate, which coincided with the period in which there was a decrease in water content and respiratory activity, an increase in reducing sugars, a decrease in SOD, CAT, APX and PPO and an increase in H2O2. After an accumulation of 553 CH below 12 °C, the budburst capacity increased, and the buds presented increased water content, decreased reducing sugars content, increased respiratory activity, low activity in SOD, CAT, APX and POD and high levels of H2O2.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782022000100201&tlng=enDiospyros kakibudburstoxidative stressreactive oxygen species |
| spellingShingle | Gabriely Pinto Pereira Felipe Francisco Aline José Maia Renato Vasconcelos Botelho Luiz Antonio Biasi Ruy Inacio Neiva de Carvalho Flávio Zanette Physiological and biochemical changes in ‘Fuyu’ persimmon buds during dormancy Ciência Rural Diospyros kaki budburst oxidative stress reactive oxygen species |
| title | Physiological and biochemical changes in ‘Fuyu’ persimmon buds during dormancy |
| title_full | Physiological and biochemical changes in ‘Fuyu’ persimmon buds during dormancy |
| title_fullStr | Physiological and biochemical changes in ‘Fuyu’ persimmon buds during dormancy |
| title_full_unstemmed | Physiological and biochemical changes in ‘Fuyu’ persimmon buds during dormancy |
| title_short | Physiological and biochemical changes in ‘Fuyu’ persimmon buds during dormancy |
| title_sort | physiological and biochemical changes in fuyu persimmon buds during dormancy |
| topic | Diospyros kaki budburst oxidative stress reactive oxygen species |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782022000100201&tlng=en |
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