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Influences of nitrate concentration and light intensity on the production of volatile halocarbons by Prorocentrum donghaiense and Phaeodactylum tricornutum
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Jie Ni1, 2, Shanshan Liu1, 2, Yan Chen1, 2, Guipeng Yang1, 2, 3, Zhen He1, 2, *
Haiyang Xuebao | 2020, 42(12) : 119 - 128
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Haiyang Xuebao | 2020, 42(12): 119-128
• Research Note •
Influences of nitrate concentration and light intensity on the production of volatile halocarbons by Prorocentrum donghaiense and Phaeodactylum tricornutum
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Jie Ni1, 2, Shanshan Liu1, 2, Yan Chen1, 2, Guipeng Yang1, 2, 3, Zhen He1, 2, *
Affiliations
  • 1 College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
  • 2 Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Qingdao 266100, China
  • 3 Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China
Published: 2020-12-25 doi: 10.3969/j.issn.0253-4193.2020.12.013
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Volatile halocarbons (VHCs) produced in the oceans are important carriers for chlorine, bromine, and iodine to enter into the atmosphere. Marine algae can produce VHCs that have an ozone-depleting potential. Marine microalgae in particular have been shown to be major contributors of VHCs in the atmosphere. However, little is known about the influences of environmental factors on the production of VHCs by marine microalgae. In this study we examined the influence of different light intensities (20 μmol/(m2·s), 70 μmol/(m2·s) and 140 μmol/(m2·s)) and nitrate concentrations (1 mg/L, 5 mg/L, 10 mg/L and 50 mg/L) on the growth of Prorocentrum donghaiense and Phaeodactylum tricornutum and the releases of four VHCs (CH3I, CH2Br2, CHBr2Cl and C2HCl3) by these two microalgae. Unialgal cultures of these two kinds of microalgae were conducted in axenic and sealed glass vessels. The VHCs were extracted and analyzed by gas chromatography coupled to purge-and-trap preconcentration system. The releases of VHCs by these two microalgae were affected by light intensity and nitrate concentration, while their influences on different VHCs were various. The release of CH3I was significantly affected by light intensity and nitrate concentrations. Within a certain range, the amount of CH3I released from the two microalgae raised with the increase of light intensity. Moreover, our results showed that increasing the nitrate level above 5 mg/L could promote the production of CH3I by these two microalgae.

volatile halocarbons  /  Prorocentrum donghaiense  /  Phaeodactylum tricornutum  /  light intensity  /  nitrate
Jie Ni, Shanshan Liu, Yan Chen, Guipeng Yang, Zhen He. Influences of nitrate concentration and light intensity on the production of volatile halocarbons by Prorocentrum donghaiense and Phaeodactylum tricornutum[J]. Haiyang Xuebao, 2020 , 42 (12) : 119 -128 . DOI: 10.3969/j.issn.0253-4193.2020.12.013
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Year 2020 volume 42 Issue 12
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Article Info
doi: 10.3969/j.issn.0253-4193.2020.12.013
  • Receive Date：2019-09-25
  • Online Date：2026-03-27
  • Published：2020-12-25
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History
  • Received：2019-09-25
  • Revised：2020-02-06
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Affiliations
    1 College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
    2 Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Qingdao 266100, China
    3 Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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