基因研究:寒冷气候下加快作物生长-凯发k8官网

基因研究:寒冷气候下加快作物生长
文章来源:未知 文章作者:meng 发布时间:2010-09-10 01:39 字体: [ ] 
(单词翻译:双击或拖选)

fresh insight into(深刻理解,洞察) how plants slow their growth in cold weather could help scientists develop crops suited to cooler environments. researchers have shown for the first time that a 1 – known as 2 – limits the growth of plants in cool temperatures, possibly 3 them adjust to cool conditions.

researchers at the university of edinburgh, who took part in the study, believe that by manipulating the gene, they could produce the opposite effect – enabling development of crops that grow well in cold climates.

scientists studied the spatula gene in a weed known as thale cress(阿拉伯芥) and found that when levels of the gene were low, the plant leaves grew almost twice as much at lower temperatures as they would normally.

being able to improve crop growth under cool conditions – in which growth would typically be slow – could help ensure the availability of food supplies for future populations.

the study, carried out by the universities of edinburgh and york, funded by the biotechnology and biological sciences research council, the garfield weston foundation and the royal society, was published in current biology.

dr karen halliday of the university of edinburgh's school of biological sciences, who took part in the study, said: "we have 4 a key gene linked to the growth of plants according to the temperature – this could be of real interest in improving crop yields and food security in 5 climates."



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1 wgkxx     
n.遗传因子,基因
参考例句:
  • a single gene may have many effects.单一基因可能具有很多种效应。
  • the targeting of gene therapy has been paid close attention.其中基因治疗的靶向性是值得密切关注的问题之一。
2 jhhyi     
n.抹刀
参考例句:
  • he scraped the mixture out of the bowl with a plastic spatula.他用塑料铲把盆里的混合料刮了出来。
  • she levelled the surface of the cake mixtured with a metal spatula.她用金属铲抹平了蛋糕配料。
3 2rgzdc     
n.食物的一份&adj.帮助人的,辅助的
参考例句:
  • the poor children regularly pony up for a second helping of my hamburger. 那些可怜的孩子们总是要求我把我的汉堡包再给他们一份。
  • by doing this, they may at times be helping to restore competition. 这样一来, 他在某些时候,有助于竞争的加强。
4 e23273e2459d3a2f113ef7cdb8d1c728     
准确地找出或描述( pinpoint的过去式和过去分词 ); 为…准确定位
参考例句:
  • his refusal to help simply pinpointed his cowardice. 他拒绝帮助正显示他的胆小。
  • computers pinpointed where the shells were coming from. 计算机确定了炮弹发射的位置。
5 tihzd     
adj.温和的,温带的,自我克制的,不过分的
参考例句:
  • asia extends across the frigid,temperate and tropical zones.亚洲地跨寒、温、热三带。
  • great britain has a temperate climate.英国气候温和。
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