The role of interactions between Prorocentrum minimum and Heterosigma akashiwo in bloom formation
The role of interactions between Prorocentrum minimum and Heterosigma akashiwo in bloom formation
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DOI：
10.1007/s10750-009-0052-y
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发表时间：
2010-01
期刊：
影响因子：
2.6
通讯作者：
Y. Yamasaki;S. Nagasoe;M. Tameishi;T. Shikata;Y. Zou;Z. Jiang;T. Matsubara;Y. Shimasaki;K. Yama
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文献类型：
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作者：
Y. Yamasaki;S. Nagasoe;M. Tameishi;T. Shikata;Y. Zou;Z. Jiang;T. Matsubara;Y. Shimasaki;K. Yama
通过双藻培养实验，研究了水华形成鞭毛体微小原甲藻和赤潮异弯藻的生长和相互作用。当两种菌以高密度接种时，H.赤霞珠则被P.最小在其它接种密度组合中，先到达稳定期的菌种基本上抑制了其它菌种的最大细胞密度，但P.最小值比H.明石。我们用一个数学模型来模拟生长和相互作用的P。minimumandH.赤藻院双藻培养物。模型表明，P.最小值总是超过H.明石时间。进一步的实验表明，P. minimumandH. akashiwocultures没有影响任何一个物种的生长，但都强烈抑制了水华形成的中肋骨条藻的生长。进一步的实验表明，H. akashiwo对P.最小增长
We examined the growth and interactions between the bloom-forming flagellatesProrocentrum minimumandHeterosigma akashiwousing bi-algal culture experiments. When both species were inoculated at high cell densities, growth ofH. akashiwowas inhibited byP. minimum. In other combinations of inoculation densities, the species first reaching the stationary phase substantially suppressed maximum cell densities of the other species, but the growth inhibition effect ofP. minimumwas stronger than that ofH. akashiwo. We used a mathematical model to simulate growth and interactions ofP. minimumandH. akashiwoin bi-algal cultures. The model indicated thatP. minimumalways out-competedH. akashiwoover time. Additional experiments showed that crude extracts fromP. minimumandH. akashiwocultures did not affect the growth of either species, but both strongly inhibited the growth of the bloom-forming diatomSkeletonema costatum. Further experiments showed that it was unlikely that reactive oxygen species produced byH. akashiwowere responsible for the inhibition ofP. minimumgrowth.