Asset Details
Do you wish to reserve the book?
Effect of irradiance on the emission of short-lived halocarbons from three common tropical marine microalgae
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
Effect of irradiance on the emission of short-lived halocarbons from three common tropical marine microalgae
Do you wish to request the book?
Effect of irradiance on the emission of short-lived halocarbons from three common tropical marine microalgae
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
Effect of irradiance on the emission of short-lived halocarbons from three common tropical marine microalgae
2019
Overview
Marine algae have been reported as important sources of biogenic volatile halocarbons that are emitted into the atmosphere. These compounds are linked to destruction of the ozone layer, thus contributing to climate change. There may be mutual interactions between the halocarbon emission and the environment. In this study, the effect of irradiance on the emission of halocarbons from selected microalgae was investigated. Using controlled laboratory experiments, three tropical marine microalgae cultures, Synechococcus sp. UMACC 371 (cyanophyte), Parachlorella sp. UMACC 245 (chlorophyte) and Amphora sp. UMACC 370 (diatom) were exposed to irradiance of 0, 40 and 120 µmol photons m −2 s −1 . Stress in the microalgal cultures was indicated by the photosynthetic performance (F v /F m , maximum quantum yield). An increase in halocarbon emissions was observed at 120 µmol photons m −2 s −1 , together with a decrease in F v /F m . This was most evident in the release of CH 3 I by Amphora sp. Synechococcus sp. was observed to be the most affected by irradiance as shown by the increase in emissions of most halocarbons except for CHBr 3 and CHBr 2 Cl. High positive correlation between F v /F m and halocarbon emission rates was observed in Synechococcus sp. for CH 2 Br 2 . No clear trends in correlation could be observed for the other halocarbons in the other two microalgal species. This suggests that other mechanisms like mitochondria respiration may contribute to halocarbon production, in addition to photosynthetic performance.
