Brassinolide Promotes the Growth of <i>Zanthixylum schinifolium</i> by Improving Photosynthetic Efficiency and Antioxidant Capacity

Brassinolide Promotes the Growth of <i>Zanthixylum schinifolium</i> by Improving Photosynthetic Efficiency and Antioxidant Capacity

As a plant growth regulator, brassinolide (BL) is essential for enhancing plant growth and development. Studies on how BL affects the growth and development of prickly ash (<i>Zanthixylum schinifolium</i>) are scarce, nevertheless. Thus, the purpose of this study was to investigate how &...

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Bibliographic Details
Main Authors: Huaru Liang, Ying Yang, Xiaoxue Li, Liu Hu, Chong Sun, Xia Liu, Lijuan Wei, Jin Zhu
Format: Article
Language:English
Published: MDPI AG 2024-12-01
Series:Agronomy
Subjects:
brassinolide
<i>Zanthixylum schinifolium</i>
growth
photosynthetic
antioxidant system
Online Access:https://www.mdpi.com/2073-4395/14/12/2892
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Summary:As a plant growth regulator, brassinolide (BL) is essential for enhancing plant growth and development. Studies on how BL affects the growth and development of prickly ash (<i>Zanthixylum schinifolium</i>) are scarce, nevertheless. Thus, the purpose of this study was to investigate how <i>Z. schinifolium</i> growth and development were affected by the application of BL (0, 0.1, 0.2, 0.3, 0.4, and 0.5 mg/L). According to the results, the 0.4 mg/L BL treatment had improved the plant height and leaf length after 30 days of treatment, which was displayed in an increase of 8.75% and 20.48%, respectively, when compared to the control (distilled water). On day 30, <i>Z. schinifolium</i>’s basal diameter, leaf breadth, compound leaf length, and leaf weight all rose noticeably after treatment with 0.4 mg/L BL. Furthermore, the 0.4 mg/L BL treatment raised the levels of osmotic substances (proline, soluble sugar, and soluble protein) and photosynthesis parameters (chlorophyll a, chlorophyll b, PSII, Fv/Fm, NPQ, and qP) in <i>Z. schinifolium</i> compared to the control. It also decreased the levels of malonaldehyde, increased the activities of antioxidant enzymes (POD, SOD, CAT, and APX), and increased the contents of non-enzymatic antioxidants (ASA and GSH). Accordingly, these findings implied that BL might be crucial in fostering <i>Z. schinifolium</i> growth and development by boosting antioxidant capacity, decreasing malonaldehyde concentration, preserving water balance, and improving photosynthesis.
ISSN:2073-4395

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