1.And that's thanks in part to a substance in their cell walls called Chitin.
而这某种程度上要感谢它们细胞壁中一种叫做角素的物质。
2.Now a lot of people think fungi are related to plants, but they are not. Believe it or not, the only other place chitin is found in abundance is in the exoskeletons of insects, crabs and such.
很多人认为菌群和植物有关,但其实不是。信不信由你,唯一能发现丰富的角素的其他地方只有昆虫、螃蟹之类的外骨骼中。
3.So in this sense, fungi are more associated with insects than with any plant. Strange, huh?
就这种意义而言,真菌和昆虫的联系比和任何植物还要紧密,很奇怪,对吧?
4.And the chitin in the cell walls of a filamentous fungus...a filament, of course, is a long thread-like structure, cells joined end to end.
而丝状真菌的细胞壁中的角素......单纤维是一种很长的像线一样的结构,细胞首尾相连。
5.Filamentous fungi grow in soil and in decaying vegetation.
丝状真菌在土壤和腐烂的植物中生长。
6.And as their name implies they exist as filaments.
而且正如它们的名字所指的那样,它们以丝的形式存在。
7.And although regarded as microorganisms, filaments from a single fungus can fan out to occupy many square meters or even several square kilometers of forest floor.
虽然被视作微生物,但是一个单独的真菌的菌丝可以呈扇形散开,占据森林地面上很多平方米或甚至好几平方千米的面积。
8.Their vast surface area allows them to break down and take in huge amounts of nutrients, but beyond that, the filaments also pull out of the soil a great deal of the pollution that might be in there, especially heavy metals.
它们巨大的表面面积允许它们分解并吸收大量的营养物质,不过除此之外,这些菌丝还从土壤中带出了可能存在其中的大量污染物质,尤其是重金属。
9.And here is where chitin comes in, like some other substances in fungal cell walls, chitin forms strong chemical bonds to heavy metals in the environment, in a process we call adsorption.
这就是角素的来源。和真菌细胞壁中的一些其他物质一样,在一个我们称为吸附的过程中,角素形成了牢固的化学粘着剂粘结了环境中的重金属。