中英雙語澳大利亞海岸發(fā)現(xiàn)最高齡植物年齡或超4500歲

培訓(xùn)啦消息：進(jìn)來有很多人在問中英雙語澳大利亞海岸發(fā)現(xiàn)最高齡植物年齡或超4500歲問題，同學(xué)們都在談?wù)?。那么中英雙語澳大利亞海岸發(fā)現(xiàn)最高齡植物年齡或超4500歲詳細(xì)內(nèi)容是什么呢，下面就和小編一起來看一下吧。

about 4,500 years ago, a single seed – spawned from two different seagrass species – found itself nestled in a favourable spot somewhere in what is now known as Shark Bay, just off Australias west coast.

大約4500年前，一顆由兩種不同海草孕育而成的種子在澳大利亞西海岸附近的鯊魚灣找到了自己的棲身之地。

Left to its own devices and relatively undisturbed by human hands, scientists have discovered that seed has grown to what is now believed to be the biggest plant anywhere on Earth, covering about 200 sq km (77 sq miles, or about 20,000 rugby fields, or just over three times the size of Manhattan island).

自由生長，受人類影響很小。科學(xué)家發(fā)現(xiàn)，這一種子已經(jīng)長成了現(xiàn)在被認(rèn)為是地球上最大的植物，占地約200平方公里（77平方英里，或約20000個(gè)橄欖球場，或略高于曼哈頓島的三倍）。

The species – a Posidonia australis, also known as fibre-ball weed or ribbon weed – is commonly found along the southern coastlines of Australia.

該物種是澳大利亞的一種，也被稱為纖維球雜草或帶狀雜草，通常在澳大利亞南部海岸線發(fā)現(xiàn)。

But when scientists started looking for genetic differences in ribbon weed across the bay, they came across a puzzle.

但當(dāng)科學(xué)家們開始尋找海灣另一邊的帶狀雜草的基因差異時(shí)，他們遇到了一個(gè)難題。

Samples taken from sites that were 180 k.m. apart suggested there were not multiple specimens of Posidonia australis, but one single plant.

從相距180公里的地點(diǎn)采集的樣本表明，并不是有多個(gè)澳大利亞狹葉珊瑚標(biāo)本，而是一種單一的植物。

"We thought what the hell is going on here? said Dr Martin Breed, an ecologist at Flinders University.

我們想這到底是怎么回事？弗林德斯大學(xué)的生態(tài)學(xué)家馬丁·布賴德博士說。

"We were completely stumped. Student researcher Jane Edgeloe, of the University of Western Australia (UWA), said about 18,000 genetic markers were examined as they looked for variations in the species that might help them select specimens for use in restoration projects.

這把我們難住了。西澳大利亞大學(xué)的學(xué)生研究員簡·埃德格洛，說他們檢查了大約18000個(gè)遺傳標(biāo)記，以尋找物種的變異，這些變異可能有助于他們選擇用于修復(fù)項(xiàng)目的標(biāo)本。

But what they found instead was that the same plant had spread using rhizomes in the same way that a lawn can spread from its edges by sending out runners.

但是他們發(fā)現(xiàn)，同一種植物通過根莖蔓延，就像草坪通過散發(fā)植物蔓從邊緣蔓延一樣。

"The existing 200 sq k.m. of ribbon weed meadows appear to have expanded from a single, colonising seedling," she said.

她說：現(xiàn)有的200平方公里的帶狀雜草草地似乎是從一株定植的幼苗蔓延而來的。

關(guān)于中英雙語澳大利亞海岸發(fā)現(xiàn)最高齡植物年齡或超4500歲的介紹就到這里，以上就是小編整理的中英雙語澳大利亞海岸發(fā)現(xiàn)最高齡植物年齡或超4500歲全部內(nèi)容了，歡迎大家留言討論。訪問培訓(xùn)啦了解更多發(fā)現(xiàn) 雙語 植物相關(guān)內(nèi)容