我觉得你怎个被孟山都洗脑了。你讲的那些转基因理由都是孟山都的宣传语。请问你是 不是拿着拿孟山都或其他外国种子公司的资助或为这些公司工作?美国现在很喜欢给中 国学农的奖学金,有些人就能成为以后打入中国粮食种子市场的先锋。退一步,就算你 和这些公司没有瓜葛,作为一个有农学背景的人,讲话基本上都是想当然,什么“我们 不发展自己的转基因工业,不意味着我们的绿色产品能竞争 得过国外的转基因食品”, 拜托多读点文献,了解一下已经有转基因工业的阿根廷, 巴西,印度这些国家的粮食主权怎么被孟山都吞噬再来说教行吗? 听听你讲的“用国外的经费,做本国的科研,总体是件挺好的事” ---在位的官员、科学家拿着外国公司的俸禄,他该替谁服务呢?你连基本的conflict of interest 概念都没有。所有拿了外国公司俸禄的在转基因方面的意见都要被 discount。但是现在是这帮人掌握的话语权,在缺乏论证和透明的情况下要强行推进转 基因。 “转基因是很安全的抗病虫杂草的方式了。” 孟山都的剧毒除草剂根本不安全。 在《体外毒理学》杂志上发表的一项最新研究发现 ,即使在非常低的水平,孟山都的除草剂配方综述破坏睾酮,并最终导致男性不育症。 调查结果增加超过25个已知的其他疾病被挂综述,其中包括DNA损伤,出生缺陷,肝功 能不全,和癌症。 http://www.sciencedirect.com/science/article/pii/S0887233311003 The major herbicide used worldwide, Roundup, is a glyphosate-based pesticide with adjuvants. Glyphosate, its active ingredient in plants and its main metabolite (AMPA) are among the first contaminants of surface waters. Roundup is being used increasingly in particular on genetically modified plants grown for food and feed that contain its residues. Here we tested glyphosate and its formulation on mature rat fresh testicular cells from 1 to 10000 ppm, thus from the range in some human urine and in environment to agricultural levels. We show that from 1 to 48 h of Roundup exposure Leydig cells are damaged. Within 24–48 h this formulation is also toxic on the other cells, mainly by necrosis, by contrast to glyphosate alone which is essentially toxic on Sertoli cells. Later, it also induces apoptosis at higher doses in germ cells and in Sertoli/germ cells co-cultures. At lower non toxic concentrations of Roundup and glyphosate (1 ppm), the main endocrine disruption is a testosterone decrease by 35%. The pesticide has thus an endocrine impact at very low environmental doses, but only a high contamination appears to provoke an acute rat testicular toxicity. This does not anticipate the chronic toxicity which is insufficiently tested, and only with glyphosate in regulatory tests.
你提供的这片文章太烂了,居然用1-10000ppm的剂量。1ppm glyphosate大概是6uM,对 于生理浓度来说是非常非常高的了,10000ppm更是没有可能在正常生理情况下出现。可 以这么说就算是10000ppm的糖都可能对细胞产生很强的伤害。我看到文章里提到1ppm是 人尿液中的浓度,我仔细找了找,文中并没有提出reference,有一个地方模模糊糊的 有一个引用,查了一下引文,人家测的在施用农药的工人以及家人中 glyphosate在尿中的浓度是ppb级别的,最高也只有233ppb,平均是3ppb,比1ppm差的 远了去了。就这个烂文章居然也能发表~~ 再给你一个科普,关于glyphosate的毒理学性质的 http://pmep.cce.cornell.edu/profiles/herb-growthreg/fatty-alcoh Glyphosate的急性毒性LD50>4000mg/kg体重,和食盐的毒性差不多,都属于低毒。也并 没有证据表明glyphosate有比较高的积累毒性。 “Tests on the biologically active ingredient in this formulation(glyphosate ) showed that glyphosate did not cause any mutagenic, carcinogenic, teratogenic (birth defects), adverse reproductive changes, or neurotoxic effects” 链接里是一个Glyphosate的chemical profile,里面毒理的东西讲的很清楚,还有参考 文献。
Do’t worry about that: >帮美帝推销产品。连种子都有产权 WINDOWS fake right holded within TG from 2002 even TG entered in WTO ↓ Monsanto GMO seed fake right same belongs to TG from 2032 from there are so many WSN/WSNV Agribio PD will be HAI-GUIed TG from美帝 before 2022 because of NSF/USDA/Private funding cut policy.