您现在的位置: 首页 > 英语听力 > 媒体资讯 > 60秒科学 > 正文

60秒科学:Plants Share Light If Neighbor Is Related

时间:2009-11-23 10:49:53 来源:可可英语 编辑:eleen  每天三分钟英语轻松学

Plants Share Light If Neighbor Is Related
A study in the American Journal of Botany finds that plants can tell if they're next to a relative and will grow to allow the kin more access to light. Cynthia Graber reports.

We humans are known to help out members of our own families. When it comes to business we call it nepotism. Now plants have demonstrated the same predilection, in a study published in the American Journal of Botany.

Previous research showed that plants—in that study they used a plant called the Great Lakes sea rocket—can recognize the root systems of siblings from the same momma plant and will give them a more fair share of nutrients in the soil.

This new study is the first to look above ground. Researchers at McMaster University in Canada potted North American impatiens. When the plants shared a pot with seeds from the same parent plant, they shared access to light by growing taller with more branches and fewer leaves. But when those same impatiens were planted with other impatiens—but not their siblings—they put more energy into growing more and larger leaves that could crowd out the non-relatives.

Researchers say the roots alert plants to the relationship of nearby plants, because when impatiens were planted near siblings but in separate pots, they didn’t recognize their kin. Just goes to show that even in the plant world, family comes first.

—Cynthia Graber

 

收藏

相关热词搜索: 60秒科学

上一篇:预告片:黑人女孩版《活着》--《遗失的美好》

下一篇:MV欣赏:澳洲天后Delta Goodrem 节奏动感<In This Life>

您可能还感兴趣的文章

60秒科学:关上眼前的一扇窗会为你打开另一扇窗
听力练习很多人都相信上帝是公平的,关上眼前的一扇窗会为你打开另一扇窗。在最新的科学研究中我们也能得到类似的结论:天生听力有缺陷的人会有更好的视觉。Recent resea

时间:2010-10-14 编辑:keke

60秒科学:Fog Found on Saturn's Moon Titan
Fog Found on Saturn's Moon TitanA study in Astrophysical Journal Letters reveals that Titan may be home to the familiar atmospheric condition known as fog--but

时间:2010-01-13 编辑:echo

60秒科学:Plants Put the Bend in Rivers
Plants Put the Bend in RiversStudies in the journals Geology and Earth-Science Reviews reveal that ancient rivers were broad straight sheets of water. Coloniza

时间:2010-02-01 编辑:echo

60秒科学:Apnea Treatment Improves Golf Game
Apnea Treatment Improves Golf GameA study presented at CHEST 2009, the meeting of the American College of Chest Physicians, found that golfers with apnea who g

时间:2009-11-09 编辑:echo

最新文章

无觅相关文章插件,快速提升流量