Induction of heartwood formation in young Indian sandalwood (Santalum album L.) by gas elicitors

被引:3
|
作者
Liu, Xiaojin [1 ]
Zhang, Qilei [1 ]
Hong, Zhou [1 ]
Xu, Daping [1 ]
机构
[1] Chinese Acad Forestry, Res Inst Trop Forestry, Guangzhou, Peoples R China
来源
FRONTIERS IN PLANT SCIENCE | 2022年 / 13卷
基金
中国国家自然科学基金;
关键词
carbon dioxide; ethylene; heartwood formation; gas elicitor; Santalum album; PLANT-GROWTH REGULATORS; CHEMICAL-COMPOSITION; CARBON-DIOXIDE; ESSENTIAL OILS; OXYGEN; CHROMATOGRAPHY; BEECH; XYLEM;
D O I
10.3389/fpls.2022.961391
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Induction of heartwood formation in 6-year-old Indian sandalwood (Santalum album L.) trees by treatment with carbon dioxide, ethylene, nitrogen, and wounding was investigated. All treatments induced fragrant heartwood formation upward and downward from the drill hole. The amount of heartwood formed above and below the drill hole depended on the treatment in the order nitrogen>carbon dioxide>ethylene>wounding, whereas the radial extension proportion was, in order, nitrogen>carbon dioxide>ethylene=wounding. Based on the chemical analysis (GC-MS) and evaluation of the essential oil quality and heartwood properties, heartwood induced by carbon dioxide showed the maximum similarities to naturally formed heartwood, which included the same color, similar chemical composition, reasonable oil content, and quality essential oil, whereas ethylene, nitrogen, and wounding treatment showed fewer similarities to natural heartwood. The results suggest that carbon dioxide is a promising candidate gas elicitor for inducing heartwood formation in young S. album.
引用
收藏
页数:12
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