TY - JOUR AU - LIU, Xiaomeng AU - ZHU, Li AU - SONG, Qiling AU - CHANG, Jie AU - YE, Jiabao AU - ZHANG, Weiwei AU - LIAO, Yongling AU - XU, Feng PY - 2018/02/07 Y2 - 2024/03/29 TI - Effects of 5-aminolevulinic Acid on the Photosynthesis, Antioxidant System, and α-Bisabolol Content of Matricaria recutita JF - Notulae Botanicae Horti Agrobotanici Cluj-Napoca JA - Not Bot Horti Agrobo VL - 46 IS - 2 SE - Research Articles DO - 10.15835/nbha46211072 UR - https://www.notulaebotanicae.ro/index.php/nbha/article/view/11072 SP - 418-425 AB - <p><em>Matricaria recutita</em> is a widely used medicinal plant with broad pharmacological effects, and α-bisabolol is the main active ingredient of this plant. To improve its α-bisabolol content, <em>M. recutita</em> was sprayed with different concentrations (1.0, 2.0,and 4.0 mmol<sup>.</sup>L<sup>−1</sup>) of 5-aminolevulinic acid (ALA) or with water as a control to study the effects of ALA treatment on the photosynthesis, antioxidant system, and α-bisabolol content of <em>M. recutita</em>. Results showed that the photosynthetic rate, transpiration rate, stomatal conductance, intercellular CO<sub>2</sub> concentration, soluble protein, total amino acids, soluble sugar, and α-bisabolol of <em>M. recutita</em> were significantly increased. Moreover, the activities of superoxide dismutase, peroxidase, and catalase of <em>M. recutita</em> were also enhanced by ALA treatment. Optimal results were obtained when the concentration of ALA was 2.0 mmol<sup>.</sup>L<sup>−1</sup>. Results showed that ALA treatment could improve the α-bisabolol content of <em>M. recutita</em>, and the underlying physiological mechanism was analyzed. ALA treatment was an effective measure for improving the medicinal value of <em>M. recutita</em>.</p> ER -