可使植物光合生产率提高300%的光合诱导素的发现之旅
2011-11-09 08:37阅读：
[核心提示]鲨鱼湾为澳洲西澳其中一个吸引游客前来海岸线的自然景点。一向惹人思考的是，究竟当细菌生长在迭层石里，几乎不能接触可见阳光时，它们是如何生存的呢？最近一名悉尼的研究人员兼助理教授陈敏(Min
Chen)终于发现这个奥秘。
陈敏教授意外发现“第五种光合诱导素”。
据澳洲《星岛日报》报道，鲨鱼湾为澳洲西澳其中一个吸引游客前来海岸线的自然景点。一向惹人思考的是，究竟当细菌生长在迭层石里，几乎不能接触可见阳光时，它们是如何生存的呢？最近一名悉尼的研究人员兼助理教授陈敏(Min
Chen)终于发现这个奥秘。
悉尼大学的陈教授去年发现，鲨鱼湾的蓝藻菌(其中一种最普遍的蓝绿藻)可利用一种与其它植物及细菌截然不同的光合诱导素来进行光合作用。这种新光合诱导素名为“光合诱导素”，是自1943年来首次发现的新品种。她表示，“完全出乎意料之外。1996年当一队日本的研究人员发现蓝藻菌的主要光合诱导素生长在一个奇怪的地方-在珊瑚礁仅有少量阳光的海鞘上。
迭层石是由蓝藻菌、碳酸钙和沉积物形成的，当浅水区的蓝藻菌和其它微生物生长时，一些沉积物沉积在上面，形成岩石般的小石丘，最后逐渐成为一层层的迭层石。陈教授便把样本磨碎，在近红外光二极管照射下培养微生物。最后竟发现蓝藻菌内有一种异于平常的光合诱导素，与典型的色素相比可吸收更多的近红外光，以进行光合作用，甚至提高光合生产率300%。
研究人员表示，这意味含有这种光合诱导素的生物可以扩阔光合作用的范围，大大增加太阳能使用的限度，提高植物的生长机能，促进植物快速生长。
陈教授指，“光合作用每个步骤都对人类有益。”这项大发现里陈教授实在为华裔争光。来澳悉尼攻读博士学位之前，陈教授在家乡大连就读东北师范大学，1998年开始进行光合作用的研究。
12日她荣膺由科技部部长颁发“2008年生物科学家大奖。”这次会在国会大楼举行颁奖仪式，一共颁发5个奖项。总理颁发“科学大奖”30万元予两位化学家-澳洲科学院的烈沙道教授和墨尔本大学的所罗门教授。
Photosynthetic productivity can increase by 300% of the
photosynthetic induction element of discovery
[Core Tips] Shark Bay, Western Australia one of Australia to
attract tourists to the natural attractions of the coastline.
Always arouses thinking is whether when the bacteria grow in the
stacked stone, almost not visible when the sun exposure, how they
survive it? Recently a researcher and assistant Sydney, Professor
Chen Min (Min Chen) has finally found the secret.
Professor Chen Min accidentally found that
'the fifth element of photosynthetic induction.'
According to Australia, 'Sing Tao Daily' reported that the Western
Australia Shark Bay is one of Australia's coastline to attract
tourists to the natural attractions. Always arouses thinking is
whether when the bacteria grow in the stacked stone, almost not
visible when the sun exposure, how they survive it? Recently a
researcher and assistant Sydney, Professor Chen Min (Min Chen) has
finally found the secret.
University of Sydney, Professor Chen discovered last year, Shark
Bay, cyanobacteria (blue-green algae in one of the most common) can
be used a completely different with other plants and photosynthetic
bacteria always induced photosynthesis. This new element of
photosynthetic induction called 'photosynthetic induction factor'
is the first time since the 1943 discovery of new species. She
said, 'totally unexpected in 1996 when a team of Japanese
researchers found that the main photosynthetic cyanobacteria growth
factor induction in a strange place - only a small amount of sun in
the coral reefs on the sea squirt.
Stacked stone by cyanobacteria, calcium carbonate and sediment
formation, when the shallow waters of the cyanobacteria and other
microbial growth, some of the sediment deposited on the above, the
formation of rock-like stone mound, and finally become a layer of
Diego layer of stone. Professor Chen put the sample ground in the
near-infrared LED light cultured microorganisms. Finally, they
discovered that cyanobacteria have a different from normal in the
photosynthetic induction factor, with typical pigment can absorb
more than near-infrared light for photosynthesis, and even improve
photosynthetic productivity 300%.
The researchers said that this means that elements containing the
biological photosynthetic induction to broaden the scope of
photosynthesis, greatly increasing the limits of solar energy use,
improve plant growth and function, and promote rapid plant
growth.
Professor Chen refers to 'every step of photosynthesis are
beneficial to man.' This discovery is of ethnic Chinese in
Professor Chen glory. Sydney, Australia prior to the PhD, Professor
Chen studied in his hometown of Dalian in Northeast Normal
University in 1998, began the study of photosynthesis.
12, she won the award by the Minister of Science 'award in 2008
bio-scientists.' This will be an awards ceremony at Parliament
House, presented a total of five awards. Prime Minister presented
'Science Award' 30 million to the two chemists - Australian Academy
of Liesha Road professor and professor at the University of
Melbourne Solomon.
