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The photo must be reproduced with the photographer's name. Scientists from The Australian National University have claimed six of the top ten positions in the high-impact science paper list. Prof Graham Farquhar is at the top of the list, having authored 22 of the 200 most cited articles in the plant biology field. When plants open their stomata pores in the leaf to capture carbon dioxide for photosynthesis, they inadvertently lose water. Prof Farquhar and his colleagues developed a reliable technique for assessing the water use efficiency of plants.