Hormone Signals Involved in the Regulation of Cucumber Seedling Lateral Branch Elongation by Far-Red Light
Cucumber (<i>Cucumis sativus</i> L.) lateral branch elongation is influenced by a variety of environmental signals, including light [e.g., far-red (FR) light] and hormones. In this experiment, the effect of FR light on the lateral branch elongation of cucumber (‘Zhongnong No. 26’) seedli...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-02-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/14/2/366 |
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| author | Shuhao Li Jun Tian Shengxiang Ran Yuqi Zhou Hongdou Gao Fenglin Zhong |
| author_facet | Shuhao Li Jun Tian Shengxiang Ran Yuqi Zhou Hongdou Gao Fenglin Zhong |
| author_sort | Shuhao Li |
| collection | DOAJ |
| description | Cucumber (<i>Cucumis sativus</i> L.) lateral branch elongation is influenced by a variety of environmental signals, including light [e.g., far-red (FR) light] and hormones. In this experiment, the effect of FR light on the lateral branch elongation of cucumber (‘Zhongnong No. 26’) seedlings was investigated. The results showed that FR light significantly inhibited the lateral branch elongation of cucumber seedlings. In addition, FR light significantly increased the auxin (indole-3-acetic acid, IAA) content, decreased the cytokinin (CTK; Zeatin) content, and suppressed the expression of most CTK synthetic-related genes, such as <i>IPTs</i>, in cucumber seedlings. The lateral branch elongation of cucumber seedlings was assessed in response to decapitation and exogenous 6-BA treatment to further investigate the relationship between IAA and CTK on the lateral branch elongation of cucumber seedlings under FR light. Both decapitation and exogenous 6-BA treatment eliminated the inhibitory effect of FR light on the lateral branch elongation of cucumber seedlings. In conclusion, these results indicated that IAA and CTK were involved in the regulatory effects of FR light on cucumber seedling lateral branch elongation. |
| first_indexed | 2024-03-07T22:45:09Z |
| format | Article |
| id | doaj.art-04f2bf36541045b0b083a8b240fc7179 |
| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-07T22:45:09Z |
| publishDate | 2024-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-04f2bf36541045b0b083a8b240fc71792024-02-23T15:04:19ZengMDPI AGAgronomy2073-43952024-02-0114236610.3390/agronomy14020366Hormone Signals Involved in the Regulation of Cucumber Seedling Lateral Branch Elongation by Far-Red LightShuhao Li0Jun Tian1Shengxiang Ran2Yuqi Zhou3Hongdou Gao4Fenglin Zhong5College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, ChinaCollege of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, ChinaCollege of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, ChinaCollege of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, ChinaCollege of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, ChinaCollege of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, ChinaCucumber (<i>Cucumis sativus</i> L.) lateral branch elongation is influenced by a variety of environmental signals, including light [e.g., far-red (FR) light] and hormones. In this experiment, the effect of FR light on the lateral branch elongation of cucumber (‘Zhongnong No. 26’) seedlings was investigated. The results showed that FR light significantly inhibited the lateral branch elongation of cucumber seedlings. In addition, FR light significantly increased the auxin (indole-3-acetic acid, IAA) content, decreased the cytokinin (CTK; Zeatin) content, and suppressed the expression of most CTK synthetic-related genes, such as <i>IPTs</i>, in cucumber seedlings. The lateral branch elongation of cucumber seedlings was assessed in response to decapitation and exogenous 6-BA treatment to further investigate the relationship between IAA and CTK on the lateral branch elongation of cucumber seedlings under FR light. Both decapitation and exogenous 6-BA treatment eliminated the inhibitory effect of FR light on the lateral branch elongation of cucumber seedlings. In conclusion, these results indicated that IAA and CTK were involved in the regulatory effects of FR light on cucumber seedling lateral branch elongation.https://www.mdpi.com/2073-4395/14/2/366cucumberlateral branchfar-red lighthormonesauxincytokinin |
| spellingShingle | Shuhao Li Jun Tian Shengxiang Ran Yuqi Zhou Hongdou Gao Fenglin Zhong Hormone Signals Involved in the Regulation of Cucumber Seedling Lateral Branch Elongation by Far-Red Light Agronomy cucumber lateral branch far-red light hormones auxin cytokinin |
| title | Hormone Signals Involved in the Regulation of Cucumber Seedling Lateral Branch Elongation by Far-Red Light |
| title_full | Hormone Signals Involved in the Regulation of Cucumber Seedling Lateral Branch Elongation by Far-Red Light |
| title_fullStr | Hormone Signals Involved in the Regulation of Cucumber Seedling Lateral Branch Elongation by Far-Red Light |
| title_full_unstemmed | Hormone Signals Involved in the Regulation of Cucumber Seedling Lateral Branch Elongation by Far-Red Light |
| title_short | Hormone Signals Involved in the Regulation of Cucumber Seedling Lateral Branch Elongation by Far-Red Light |
| title_sort | hormone signals involved in the regulation of cucumber seedling lateral branch elongation by far red light |
| topic | cucumber lateral branch far-red light hormones auxin cytokinin |
| url | https://www.mdpi.com/2073-4395/14/2/366 |
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