ScienceDaily (Apr. 2, 2012)— The world's most popular weed killer, Roundup®, can cause amphibians to change shape, according to research recently published in Ecological Applications. Prof.Rick Relyea,Department of Biological Sciences, University of Pittsburgh, demonstrated that sublethal and environmentally relevant concentrations of Roundup® caused two species of amphibians to alter their morphology. According to Relyea, this is the first study to show that a herbicide can induce morphological changes in a vertebrate animal. "This discovery highlights the fact that pesticides, which are important for crop production and human health, can have unintended consequences for species that are not the pesticide's target," says Relyea. "Herbicides are not designed to affect animals, but we are learning that they can have a wide range of surprising effects by altering how hormones work in the bodies of animals. This is important because amphibians not only serve as a barometer of the ecosystem's health, but also as an indicator of potential dangers to other species in the food chain, including humans." This scientific research finding again proves, “glyphosate … has no danger to human health” advocated by Fang Zhou-zi, not only is a out-and-out fallacy, and in-fact is to promote deliberate crime evil!
Roundup Herbicide Can Induce Morphological Changes in Vertebrate Animals: Tadpoles Change Shape
草甘膦除草劑對脊椎動物中可以誘發形態改變
-- 禁止抗草甘膦轉基因作物原料進口、開發、種植、銷售理由之230
-- The 229th reason to forbid import, development, growing and selling of RR soybeans
ScienceDaily (Apr. 2, 2012)— The world's most popular weed killer, Roundup®, can cause amphibians to change shape, according to research recently published in Ecological Applications. [1]
Rick A. Relyea. New effects of Roundup on amphibians: Predators reduce herbicide mortality; herbicides induce antipredator morphology. Ecological Applications, 2012; 22 (2): 634 DOI:10.1890/11-0189.1
Rick A. Relyea。草甘膦除草劑對于脊椎動物新的作用：食肉動物減少除草劑死亡率；除草劑誘發抗食肉動物形態。生態應用，2012; 22 (2): 634 DOI:10.1890/11-0189.1
Department of Biological Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania 15260 USA
作者單位，生物科學系，匹茲堡大學，賓色法尼亞，美國。
Rick Relyea, University of Pittsburgh professor of biological sciences in the Kenneth P. Dietrich School of Arts and Sciences and director of Pitt's Pymatuning Laboratory of Ecology, demonstrated that sublethal and environmentally relevant concentrations of Roundup® caused two species of amphibians to alter their morphology. According to Relyea, this is the first study to show that a herbicide can induce morphological changes in a vertebrate animal.
瑞克·利萊伊，匹茲堡大學Kenneth P. Dietrich文學與科學學院生物科學教授，匹茲堡生態諧調實驗室主任，演示了亞致死量與環境中存在濃度的草甘膦除草劑農達造成兩種脊椎動物改變它們的形態。根據利萊伊教授，這是表明一種除草劑可以誘發脊椎動物形態改變的頭一項研究。
Relyea set up large outdoor water tanks that contained many of the components of natural wetlands. Some tanks contained caged predators, which emit chemicals that naturally induce changes in tadpole morphology (such as larger tails to better escape predators). After adding tadpoles to each tank, he exposed them to a range of Roundup® concentrations. After 3 weeks, the tadpoles were removed from the tanks.
"It was not surprising to see that the smell of predators in the water induced larger tadpole tails," says Relyea. "That is a normal, adaptive response. What shocked us was that the Roundup® induced the same changes. Moreover, the combination of predators and Roundup® caused the tail changes to be twice as large." Because tadpoles alter their body shape to match their environment, having a body shape that does not fit the environment can put the animals at a distinct disadvantage.
Predators cause tadpoles to change shape by altering the stress hormones of tadpoles, says Relyea. The similar shape changes when exposed to Roundup® suggest that Roundup® may interfere with the hormones of tadpoles and potentially many other animals.
"This discovery highlights the fact that pesticides, which are important for crop production and human health, can have unintended consequences for species that are not the pesticide's target," says Relyea. "Herbicides are not designed to affect animals, but we are learning that they can have a wide range of surprising effects by altering how hormones work in the bodies of animals. This is important because amphibians not only serve as a barometer of the ecosystem's health, but also as an indicator of potential dangers to other species in the food chain, including humans."
烏有之鄉 WYZXWK.COM
