Evaluation of Clove Extract for Drug Therapy of Ciliate Infection in Coral ()

Overview

Journal Biology (Basel)

Publisher MDPI

Specialty Biology

Date 2022 Feb 25

PMID 35205146

Authors

Tah-Wei Chu

Chiu-Min Cheng

Yu-Rong Cheng

Cheng-Di Dong

Chih-Hung Chuang

Chih-Hung Pan

Wei-Ting Sun

De-Sing Ding

Affiliations

Soon will be listed here.

Abstract

In recent years, ciliate infections have caused serious casualties to corals in the ocean. Infected corals die within a short period of time, which not only poses a threat to wild coral reefs, but also has a major impact on large scale aquaculture of coral. Clove is a kind of Chinese medicine with antifungal, antibacterial, antiviral, insecticidal, and other functions. Clove is a natural product. If it can be used in the treatment of coral ciliates, it will reduce this threat to the environment. The clove extract was diluted with sterile seawater to 500 ppm, 1500 ppm, 2500 ppm, 5000 ppm, 7500 ppm, and 10,000 ppm to carry out virulence test on ciliates. The results show that the LC value is 1500 ppm, which can cause the death of ciliates in 10 min without causing significant changes in SOD, CAT, chlorophyll a, and zooxanthellae. In addition, observation of tissue slices revealed that no ciliates and vacuum were found in the tissue after 10 min of medicated bathing. In summary, 1500 ppm of clove extract can be used for the treatment of coral ciliates.

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