物种化促进了对恐龙体生长和珊瑚素样酶活动的明显影响
Lúcio Lourenço de Freitas Neto1, Rudã Fernandes Brandão Santos2, Maria Angélica da Silva2
1Instituto de Química, Universidade de São Paulo, Av. Lineu Prestes 748, São Paulo, 05508-000, Brazil.
概括
物种化会影响珊瑚的健康. 这项研究发现,-基酸复合物 ([Zn(His) 2)) 支持微藻生长,并保持珊瑚酶功能,这表明它对珊瑚种植和全生物体健康的潜力.
科学领域:
- 海洋生物学 海洋生物学
- 生物地质化学生物地质化学
- 珊瑚礁生态 珊瑚礁生态
背景情况:
- 对海洋生物至关重要,包括珊瑚和它们的共生微藻 (Symbiodiniaceae).
- 水平的不平衡 (缺乏或过载) 破坏珊瑚的新陈代谢,导致漂白和死亡.
- 了解的化学形式对于管理珊瑚健康至关重要.
研究的目的:
- 为了研究各种化学物种对三种关键的Symbiodiniaceae dinoflagellate菌株的生长的影响.
- 评估这些物种对水珊瑚Millepora alcicornis的试类蛋白解活性的影响.
- 确定一种对珊瑚水产养殖和健康有潜在益处的化合物.
主要方法:
- 培养了三种具有不同形式的恐龙体物种 (Symbiodinium microadriaticum,Breviolum minutum,Effrenium voratum):自由 Zn(II),ZnO纳米颗粒,Zn-histidinate ([Zn(His) 2),以及 Zn-EDTA.
- 在不同的条件下测量了dinoflagellate的生长速度.
- 在暴露于化合物和histidine的Millepora alcicornis提取物中测试了试类酶活性.
主要成果:
- Breviolum minutum对所有测试的形式都表现出高度敏感.
- Zn-histidinate复合物 ([Zn(His) 2)) 促进了其他菌株的生长,并且是唯一不会抑制珊瑚酶活性的物种.
- 仅仅希斯蒂丁可以逆转诱导的酶抑制,[Zn(His) 2]可能作为生物载体.
结论:
- 的化学物种化显著影响珊瑚的全生物体功能.
- -基酸复合物 ([Zn(His) 2)) 显示为安全有效的补充剂,用于微藻和珊瑚种植.
- 控制物种化可能会产生可以增强珊瑚自身养的化合物,而不会损害异质养.
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