{"id":1206,"date":"2021-06-29T19:00:19","date_gmt":"2021-06-29T19:00:19","guid":{"rendered":"https:\/\/sites.icb.ufmg.br\/leeb\/?p=1206"},"modified":"2021-06-29T19:08:40","modified_gmt":"2021-06-29T19:08:40","slug":"plantas-carnivoras","status":"publish","type":"post","link":"https:\/\/sites.icb.ufmg.br\/leeb\/plantas-carnivoras\/","title":{"rendered":"Plantas Carn\u00edvoras"},"content":{"rendered":"\n

Diferentes dos seres assustadores e perigosos da fic\u00e7\u00e3o, as plantas carn\u00edvoras podem trazer in\u00fameros benef\u00edcios aos humanos. As orvalhinhas, por exemplo, muito frequentes no Brasil, s\u00e3o capazes de combater diversas doen\u00e7as, como o c\u00e2ncer, mas sofrem amea\u00e7a de extin\u00e7\u00e3o.<\/strong><\/h2>\n\n\n\n

As plantas carn\u00edvoras s\u00e3o mais inofensivas do que o nome sugere. Em quase nada se parecem com os seres retratados na fic\u00e7\u00e3o, em filmes como O terror veio do espa\u00e7o<\/em>, A pequena loja dos horrores<\/em> e Jumanji \u2013 Uma aventura espacial<\/em> ou em s\u00e9ries como Tarzan<\/em>. Elas n\u00e3o s\u00e3o gigantes, n\u00e3o possuem dentes, n\u00e3o atacam nem engolem pessoas. A maioria das esp\u00e9cies n\u00e3o chega a atingir 50 cm de altura, e suas armadilhas s\u00f3 s\u00e3o capazes de atrair, capturar, digerir e assimilar nutrientes de pequenos animais, como insetos.<\/p>\n\n\n\n

No reino vegetal, as plantas carn\u00edvoras s\u00e3o as \u00fanicas a se alimentarem de animais. Por essa caracter\u00edstica e por sua beleza ex\u00f3tica, atraem interesse de colecionadores, paisagistas e do p\u00fablico em jardins bot\u00e2nicos mundo afora.<\/p>\n\n\n\n

Entre os 600 tipos de carn\u00edvoras registrados no planeta, destacam-se as orvalhinhas, que t\u00eam a segunda maior diversidade de esp\u00e9cies, 220, ou seja, mais de 30% do total. Cientificamente, s\u00e3o conhecidas como Drosera<\/em>, do grego drosos<\/em>, que significa orvalho. O nome tem origem nas armadilhas brilhantes que essas plantas usam para capturar suas presas: elas apresentam got\u00edculas pegajosas semelhantes a gotas de orvalho.<\/p>\n\n\n\n

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Figura 1. Estrat\u00e9gia das orvalhinhas para capturar suas presas: Tent\u00e1culos da esp\u00e9cie Drosera camporupestris<\/em> com gotas da subst\u00e2ncia pegajosa em que os insetos fi cam grudados;<\/sub><\/figcaption><\/figure>\n<\/div>\n\n\n\n
\n
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Folha da esp\u00e9cie Drosera chrysolepis<\/em> se dobra em torno do inseto capturado.
Cr\u00e9ditos: Michel J Pereira Alves<\/sub><\/figcaption><\/figure>\n\n\n\n

<\/p>\n<\/div>\n<\/div>\n\n\n\n

Michel J. Pereira Alves, <\/strong>J\u00falio C\u00e9sar Santiago, <\/strong>Yumi Oki e <\/strong>Wilson Fernandes
<\/strong>Laborat\u00f3rio de Ecologia Evolutiva e Biodiversidade,
Departamento de Gen\u00e9tica, Ecologia e Evolu\u00e7\u00e3o,
Universidade Federal de Minas Gerais<\/p>\n\n\n\n

Daniel Negreiros
<\/strong>Instituto de Ci\u00eancias Biol\u00f3gicas e Sa\u00fade,
Centro Universit\u00e1rio UNA<\/p>\n\n\n\n

Site: https:\/\/cienciahoje.org.br\/artigo\/a-outra-face-das-plantas-carnivoras\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Diferentes dos seres assustadores e perigosos da fic\u00e7\u00e3o, as plantas carn\u00edvoras podem trazer in\u00fameros benef\u00edcios aos humanos. 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