Zamani, Neviaty and Soedharma, Dedi and Madduppa, Hawis and Muhaemin, Moh. (2019) The intracellular photopigment and glutathione (GSH) dynamics in symbiodinium natural population during light stress and recovery. In: IOP Conference Series: Earth and Environmental Science, Bogor.

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Abstract

It is already proven by scientists, that mass coral bleaching is an early signal for increasing global temperature. Over the last decades, there was a lack of studies aimed at photoinhibition in Symbiodinium during laboratory treatments. It was important to predict the initial adaptation in relation to photo-inhibitory of photosynthesis accompanied by slight photoprotective mechanisms and gradual recovery of Symbiodinium. This information is important to understand the recovery mechanism of mass coral bleaching, which can help to develop sustainable management of the ecosystem. In our manuscript, we applied medium light stress [600 μmol (photon).m-2.s-1] to trigger changes in intracellular photo-pigments (chlorophyll a, chlorophyll c, carotenoid) and glutathione (GSH) contents in Symbiodinium. The result showed that light-induced generated various depletion in chlorophyll (chl) a and chlorophyll (chl) c contents, and more production in intracellular carotenoid and GSH. The total intracellular GSH increased during the first 10 min of culture at high light treatment and followed by a decrease (at 60 min). The GSH recovery finished in Symbiodinium even after 6 h indicated the high ability of photo-protective processes in the species as another photoinhibition effect and its photosynthetic performance in the initial environment.

Item Type: Conference or Workshop Item (Paper)
Subjects: Q Science > Q Science (General)
Q Science > QH Natural history > QH301 Biology
Q Science > QP Physiology
S Agriculture > SH Aquaculture. Fisheries. Angling
Divisions: Fakultas Pertanian (FP) > Prodi Ilmu Kelautan
Depositing User: MOH. MUHAE
Date Deposited: 18 May 2020 03:56
Last Modified: 18 May 2020 03:56
URI: http://repository.lppm.unila.ac.id/id/eprint/19918

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