Phaeodactylum tricornutum is one of the important marine diatoms for oceanic primary production. Its reproduction has profound significance in the life cycle; however, the nuclear behavior during its sexual reproducti...Phaeodactylum tricornutum is one of the important marine diatoms for oceanic primary production. Its reproduction has profound significance in the life cycle; however, the nuclear behavior during its sexual reproduction was not clear. In this study, we observed the nuclear transition and determined its correlation with cell conjunction. It was found that two cells jointed at their apices first and swung and aligned each other immediately, and nucleus from one cell was able to transfer into another one during cell conjugation. The cell pairs conjugated for nuclear transition were different from those formed in mitosis in hypovalve thickness and cellular arrangement. Our findings proved the existence of sexual reproduction in P. tricornutum.展开更多
At present,the development of greenlow-carbon economy has become a globa l consensus,and is also the top priority for China’s economic development.To promote carbon peaking and carbon neutrality,scientific and techno...At present,the development of greenlow-carbon economy has become a globa l consensus,and is also the top priority for China’s economic development.To promote carbon peaking and carbon neutrality,scientific and technological innovation and technology application is a key support.Recently,several ministries and departments jointly issued the“Implementation Plan for Green and Low-carbon Advanced Technology Demonstration Projects”(hereinafter referred to as“the Plan”),aiming to further accelerate the demonstration and application of green and low-carbon advanced and applicable technologies。展开更多
基金supported by the State Basic Research and Development Program of China (973 Program) (2011-CB200901)the Promotive Research Fund for Excellent Young and Middle-aged Scientists of Shandong Province(BS2010SW037)the Opening Research Project of Experimental Marine Biology Laboratory,Institute of Oceanology,Chinese Academy of Sciences
文摘Phaeodactylum tricornutum is one of the important marine diatoms for oceanic primary production. Its reproduction has profound significance in the life cycle; however, the nuclear behavior during its sexual reproduction was not clear. In this study, we observed the nuclear transition and determined its correlation with cell conjunction. It was found that two cells jointed at their apices first and swung and aligned each other immediately, and nucleus from one cell was able to transfer into another one during cell conjugation. The cell pairs conjugated for nuclear transition were different from those formed in mitosis in hypovalve thickness and cellular arrangement. Our findings proved the existence of sexual reproduction in P. tricornutum.
文摘At present,the development of greenlow-carbon economy has become a globa l consensus,and is also the top priority for China’s economic development.To promote carbon peaking and carbon neutrality,scientific and technological innovation and technology application is a key support.Recently,several ministries and departments jointly issued the“Implementation Plan for Green and Low-carbon Advanced Technology Demonstration Projects”(hereinafter referred to as“the Plan”),aiming to further accelerate the demonstration and application of green and low-carbon advanced and applicable technologies。
