紫萍（Spirodela polyrhiza (L.) Schleid.）是天南星科紫萍属叶状体扁平，阔倒卵形，先端钝圆，表面绿色，背面紫色，具掌状脉，背面中央生根，根白绿色，根冠尖，脱落；幼小叶状体渐从囊内浮出，由一细弱的柄与母体相连。

Spirodela is a genus of aquatic plants, one of several genera containing plants commonly called duckweed. Spirodela species are members of the Araceae under the APG II system . They were formerly members of the Lemnaceae .

Feb 19, 2014 · We show that Spirodela has a genome with no signs of recent retrotranspositions but signatures of two ancient whole-genome duplications, possibly 95 million years ago (mya), older than those in...

Spirodela polyrhiza (orth. var. S. polyrrhiza) is a species of duckweed known by the common names common duckmeat, [1] greater duckweed, [2] great duckmeat, [3] common duckweed, and duckmeat. It can be found nearly worldwide in many types of freshwater habitat.

版纳植物园的科研人员在毗邻缅北的滇西南地区进行野外考察时发现一未知的樟科植物，通过对该物种及其近缘种开展深入的形态学和分子系统.

紫萍属（学名： Spirodela ）是泽泻目 天南星科 浮萍亚科下的一个属。该属共有4种，分布于温带和热带地区。 [1]

紫萍属（学名： Spirodela Schleid.）水生飘浮草本。 叶状体盘状，具3-12脉，背面的根多数，束生，具薄的根冠和1维管束。 6种。 分布于温带和热带地区。 我国有2种。 Spirodela Schleid. 水生飘浮草本。 叶状体盘状，具3-12脉，背面的根多数，束生，具薄的根冠和1维管束。 花序藏于叶状体的侧囊内。 佛焰苞袋状，含2个雄花和1个雌花。 花药2室。 子房1室，胚珠2，倒生。 果实球形，边缘具翅。 [1] 6种。 分布于温带和热带地区。 我国有2种。 [2] 少根紫萍 Spirodela …

Sep 3, 2019 · 浮萍为世界上最小的单子叶开花植物，它生活于水体中，具有适应性强，分布广，淀粉含量丰富等特点，是一种优良的生物能源植物，同时可以高效吸收富营养和重金属污染水体中的氮、磷及铜、砷等元素，是一种有应用前景的生物清洁植物。 2014年由美国能源部资助的第一版浮萍基因组为浮萍功能基因组学和分子生物学研究提供了强有力的参考序列，并且开启了工业化应 …

Spirodela polyrrhiza (Giant Duckweed) is a free-floating, aquatic perennial forming a carpet of small, oval to rounded, deep glossy green leaves with a red dot on the top and dark red undersides. Each plant consists of 2 to 3 leaves, which are usually connected, up to 3-15 minute roots hanging beneath the leaves and a pouch containing male and ...

Higher plants exhibit a remarkable phenotypic plasticity to adapt to adverse environmental changes. The greater duckweed Spirodela, an aquatic plant, presents exceptional tolerance to cold winters through its dormant structure of turions in place of seeds. Abundant starch in turions permits them to sink and escape the freezing surface of waters.