摘要
以Nd3+诱导番茄叶,测定其对番茄叶挥发性物质组成和含量的影响。结果表明,番茄叶经60 mg.L-1Nd3+诱导120 h后,挥发性物质的总含量较对照组的增加57%;氧合脂类、萜类化合物、芳香族化合物的含量分别较对照组的提高73%,38%和32%。含量最高组分(E)-2-己烯醛较对照组的提高74%。含量显著性提高的组分还包括萜类化合物的β-水芹烯和α-石竹烯,芳香族化合物的丁子香酚,分别较对照组的提高129%,65%和309%。不同浓度的Nd3+均可促进挥发性物质的释放,且随诱导时间呈不同的变化趋势。一定浓度的Nd3+还可诱导番茄叶活性氧的释放以及几丁质酶和-β1,3-葡聚糖酶活力的提高。说明Nd3+可能通过提高番茄叶挥发性物质的含量,以增强其抗病能力。
The effects of Nd^3＋ on the quality and quantity of volatile organic compounds （VOCs） in the leaves of Lycopersicon esculentum were studied. The results demonstrate that Nd^3＋ can increase the total amount of VOC by 75% after treatment for 120 h, as compared with the control. Phyto-oxylipins, terpenoids and aromatic compounds were increased by 73%, 38% and 21%, respectively. （E）-2-hexenal, the most abundant constituent is increased by 74%,β- phellandrene and a-caryophyllene in terpenoids, eugenol in aromatic compounds are also enhanced significantly, and increase by 129%, 65% and 309%, respectively. Nd^3＋ in different concentration can increase the production of VOCs and shows different trends in the time course of induction. There is also an increase in· O^-2 formation, chitinase and β-1,3-glucanase activities in response to Nd^3＋ treatment. These findings suggest that Nd^3＋ may act as a potent agent to enhance the ability of Lycopersicon esculentum against disease by increasing the production of VOCs.
出处
《中国稀土学报》
CAS
CSCD
北大核心
2006年第3期338-343,共6页
Journal of the Chinese Society of Rare Earths
基金
国家863(2002AA244031)
青岛市科技计划(05-1-NS-65)资助项目
关键词
钕
番茄
挥发性物质
活性氧
几丁质酶
β-1
3-葡聚糖酶
稀土
Nd^3＋
Lycopersicon esculentum
volatile organic compounds
·O^-2
chitinase
β-1,3-glucanase
rare earths
