Co-cultivation of Chlorella spp and tomato in a hydroponic system
Co-cultivation of Chlorella spp and tomato in a hydroponic system
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小球藻属和番茄在水培系统中的共培养
DOI：
10.1016/j.biombioe.2016.12.024
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发表时间：
2017-02-01
影响因子：
6
通讯作者：
Zhou, Qifa
中科院分区：
文献类型：
--
作者：
Zhang, Jing;Wang, Xinjie;Zhou, Qifa
本研究在微藻与作物共生关系的基础上，提出了一种具有成本效益和环境可持续性的新微藻生产策略。该方法通过使用简单的生态水培系统（EHS）实现微藻和作物的同时生产，投入物仅用于作物生产。在温室试验中，成功地在番茄水培体系中培养出了绿球藻。EHS的藻类和作物生物量生产力分别为32 +/- 5 g m(-3) d（-1）和54.24 +/- 1.81 g dm(-3) d(-1) (n = 6)，显著（P < 0.05）大于不曝气作物单养的藻类生物量生产力(16 +/- 5 g m（-3) d(-1), n = 6）和作物生物量生产力(33.97 +/- 7.58 g dm（-3) d(-1), n = 6）。生物量产量的增加主要归因于藻类光合作用的通气和作物根系呼吸的CO2施肥。其中氮磷利用效率较高，主要是由于微藻与作物对养分的共同利用。因此，这个简单的系统可以作为微藻养殖和水培作物生产的模型系统。(C) 2017 Elsevier Ltd.版权所有。
In this study, a new cost-effective and environmentally sustainable microalgal production strategy was developed on the basis of the microalgae-crop symbiosis association. This method allowed the simultaneous production of microalgae and crops by using a simple eco-hydroponic system (EHS), with the input only for crop production. In glasshouse experiments, green algae Chlorella infusionum was successfully cultivated in a hydroponic culture system cultivating tomato. The algal and crop biomass productivities in the EHS were 32 +/- 5 g m(-3) d(-1) and 54.24 +/- 1.81 g dm(-3) d(-1) (n = 6 for each), respectively, which was significantly (P < 0.05) greater than the algal biomass productivity (16 +/- 5 g m(-3) d(-1), n = 6) in the algal monoculture and the crop biomass productivity (33.97 +/- 7.58 g dm(-3) d(-1), n = 6) in the crop monoculture without aeration. The enhancement of the biomass productions was mainly attributed to the aeration from algal photosynthesis and the CO2 fertilization from crop root respiration in the EHS. Particularly, the nitrogen and phosphorus utilization efficiencies were high due to co-utilization of the nutrients by microalgae and crop in the EHS. This simple system could thus be applied as a model system for microalgal farming and hydroponic crop production. (C) 2017 Elsevier Ltd. All rights reserved.