水生生物学报2016，Vol.40Issue(6)：1234-1240,7.DOI:10.7541/2016.161
桉树脑和柠檬烯对莱茵衣藻光合特性的影响
EFFECTS OF EUCALYPTOL AND LIMONENE ON THE PHOTOSYNTHETIC ABILITIES INCHLAMYDOMONAS REINHARDTII
摘要
Abstract
This study investigated the allelopathic effects of eucalyptol and limonene, two main terpenoids from cya-nobacteria VOCs, on other algae by focusing on cell growth, absorption spectra of photosynthetic pigments and photo-synthetic abilities usingChlamydomonas reinhardtii. Eucalyptol at 1.6 and 4 mmol/L as well as limonene at 0.4 and 0.8 mmol/L remarkably inhibitedC. reinhardtii cell growth by 16.7%, 50.6%, 29.1% and 44.4%, respectively. Moreover, limonene at 1.6 and 4 mmol/L killed the cells. In addition, an obvious reduction was found in the absorption peaks at 413, 433, 457 and 663 nm. The components of photosynthetic pigments were degraded markedly, and xantho-phyll even disappeared by 0.8 mmol/L limonene treatment. WhenC. reinhardtii cells were treated by eucalyptol and li-monene, the fluorescence intensity from O to P was lower compared to the control, and it was declined with the in-creased compound concentration. In chlorophyll fluorescence transient parameters,φPo,Ψo,φEo,RC/CSM,ABS/CSM, TRo/CSM,ETo/CSMandPIABS were declined remarkably, whileDIo/CSM was raised remarkably, indicating that euca-lyptol and limonene can inhibit the quantum production and electron transport in PSII, and promote the absorbed solar energy to dissipate as heat. Therefore, eucalyptol and limonene might play allelopathic effects in cyanobacteria VOCs via inducing degradation of photosynthetic pigments and reducing photosynthetic abilities in other algae.关键词
化感作用/桉树脑/柠檬烯/吸收光谱/光合性能Key words
Allelopathy/Eucalyptol/Limonene/Absorption spectrum/Photosynthetic ability分类
生物科学引用本文复制引用
周律,赵静娴,徐庆欢,杨王庭,左照江..桉树脑和柠檬烯对莱茵衣藻光合特性的影响[J].水生生物学报,2016,40(6):1234-1240,7.基金项目
国家自然科学青年基金项目(31300364) （31300364）
浙江农林大学科研发展基金人才启动项目(2013FR069)资助[Supported by the National Natural Science Foundation for Distinguished Young Scholars (31300364) （2013FR069）
the Personnel Startup Project of the Scientific Research and Development Foundation of Zhejiang A & F University (2013FR069) （2013FR069）
