As the global desire for natural remedies derived from botanicals increases, the pressure on plant populations and biodiversity intensifies. Therefore, to conserve biodiversity as a valuable genetic and biochemical resource, sustainable utilisation and commercial production should be prioritised. Myrsine africana L. (MA), has recently been found to possess significant cosmeceutical properties, such as elastase inhibition (anti-wrinkle) and anti-tyrosinase (skin even tone) activity. However, this species is relatively slow growing, recalcitrant to adventitious root (AR) development, and has slightly insufficient bioactivity in raw extracts. These factors reduce the economic feasibility of producing this commercially valuable indigenous species. Consequently, this may enhance wild harvesting of this species, placing pressure on wild populations. Manipulation of light is a common practice in plant production to exploit plant growth and development, as light quantity and quality effectively influence the primary and secondary metabolism of plants. Therefore, the current study aimed to investigate the influence of selected photoselective shade net on vegetative growth and metabolites of MA shoot material. Results displayed significantly enhanced growth (p < 0.001) under green (50% density), black (50%) and red (80%) shade net in comparison to the control (cultivation under full sun) and inhibited growth under blue (50%) shade net. Shade net effectively influenced starch and soluble carbohydrate content. Furthermore, significantly higher elastase inhibition was observed under green and red shade net treatments in comparison to the control in autumn, with IC₅₀ values of 18.59 µg/mL, 19.28 µg/mL and 37.93 µg/mL, respectively. In addition, bioactivity was significantly higher in autumn (p < 0.001) under green, red and control treatments. It can be concluded that photoselective shade net may be used to enhance plant growth and bioactivity of MA.

随着全球对源自植物的自然疗法的需求增加，对植物种群和生物多样性的压力也在加剧。因此，为了保护生物多样性作为宝贵的遗传和生化资源，应优先考虑可持续利用和商业化生产。非洲肉豆蔻最近发现 L. (MA) 具有显着的药妆特性，例如抑制弹性蛋白酶（抗皱）和抗酪氨酸酶（均匀肤色）活性。然而，该物种生长相对缓慢，不利于不定根 (AR) 的发育，并且在原始提取物中的生物活性略显不足。这些因素降低了生产这种具有商业价值的本土物种的经济可行性。因此，这可能会促进该物种的野生捕捞，给野生种群带来压力。控制光是植物生产中利用植物生长和发育的常见做法，因为光的数量和质量有效地影响植物的初级和次级代谢。所以，目前的研究旨在研究选定的光选择性遮阳网对 MA 芽材料的营养生长和代谢物的影响。结果显示，与对照（在充足阳光下栽培）相比，绿色（50% 密度）、黑色（50%）和红色（80%）遮阳网下的生长显着增强（p < 0.001），蓝色（50%）下的生长受到抑制) 遮阳网。遮阳网有效地影响了淀粉和可溶性碳水化合物的含量。此外，与秋季的对照相比，在绿色和红色遮阳网处理下观察到显着更高的弹性蛋白酶抑制，IC 黑色 (50%) 和红色 (80%) 遮阳网与对照（在充足阳光下栽培）相比，在蓝色 (50%) 遮阳网下抑制了生长。遮阳网有效地影响了淀粉和可溶性碳水化合物的含量。此外，与秋季的对照相比，在绿色和红色遮阳网处理下观察到显着更高的弹性蛋白酶抑制，IC 黑色 (50%) 和红色 (80%) 遮阳网与对照（在充足阳光下栽培）相比，在蓝色 (50%) 遮阳网下抑制了生长。遮阳网有效地影响了淀粉和可溶性碳水化合物的含量。此外，与秋季的对照相比，在绿色和红色遮阳网处理下观察到显着更高的弹性蛋白酶抑制，IC_{50 个}值分别为 18.59 µg/mL、19.28 µg/mL 和 37.93 µg/mL。此外，在绿色、红色和对照处理下，秋季生物活性显着更高（p < 0.001）。可以得出结论，光选择性遮阳网可用于增强MA的植物生长和生物活性。