Tomateiro - planta carnívora?

Fonte da noticia:http://connuestroperu.com/index.php?option=com_content&task=view&id=8882&Itemid=56

Consideran que tomates y papas son plantas carnívoras


Las plantas de tomate son carnívoras, pues tienen la capacidad de atrapar insectos y absorber sus nutrientes, revelaron botánicos de los Jardines Reales Botánicos de Kew, Reino Unido en un estudio publicado en The Botanical Journal of the Linnean Society.


No sólo los tomates, sino las plantas de papas, pese a que proveen de suculentos alimentos, pero son capaces de atrapar insectos, cualidad que hasta ahora había sido ignorada por los botánicos, quienes no las habían clasificado dentro de los vegetales carnívoros, que se pensaba sólo existían en lugares remotos y escondidos.

Ahora los investigadores creen que hay cientos de otras plantas que pueden atrapar insectos y digerirlos, más de lo que antes habían imaginado.

Entre las plantas carnívoras se encuentran la petunia, el tabaco ornamental y el “monedero del pastor”, que es familia de las coles.

Según Mike Fay, investigador de Kew, las plantas carnívoras conocidas son 650, pero un estudio más exhaustivo podría aumentar a este número unas 325 más, es decir, un 50%.

Uno de los primeros en identificar a las plantas carnívoras fue Charles Darwin, quien experimentó alimentándolas con insectos y en 1875 publicó el libro Plantas Insectívoras.

Fay indica que los botánicos no han reconocido a muchas plantas carnívoras porque no tienen las características principales de las plantas carnívoras conocidas.

Plantas como las papas y los tomates poseen pelos pegajosos con los que atrapan pulgones y otros pequeños invertebrados, tras lo cual no son devorados de inmediato, sino que dejan caer los cuerpos muertos al suelo para que los nutrientes sean asimilados por las raíces.

Esta abilidad es compartida por la roridula de Sudáfrica, que tiene hojas pegajosas que atrapan moscas, pero las hojas no las pueden digerir. Otro insecto come las moscas y deja caer sus heces a tierra, lo que alimenta a las raíces.

Siendo las plantas de tomate y papas de cultivo donde se usa fertilizantes, estos nutrientes no tienen mucho beneficio, pero en estado silvestre son una fuente importante de alimentación.

El profesor Mark Chase explica que los tomates y papas cultivadas todavía tienen esos pelos, atrapan insectos de manera regular y los matan.

isso é tipo carnivorismo indirecto, isso até as batatas fazem, se não me engano, mas para ser considerada carnivora tem de absorver os nutrientes directamente, se começamos a ir por ai então todas as plantas são carnivoras ou até herbivoras, afinal alimentam-se dos restos que caem no solo

.

Fonte: http://www.linnean.org/index.php?id=243&tx_ttnews[tt_news]=263&tx_ttnews[backPid]=212&cHash=1e916259fc
Tradução:http://translate.google.pt/translate?u=http%3A%2F%2Fwww.linnean.org%2Findex.php%3Fid%3D243%26tx_ttnews[tt_news]%3D263%26tx_ttnews[backPid]%3D212%26cHash%3D1e916259fc&sl=en&tl=pt&hl=&ie=UTF-8


Scientists think ‘Killer Petunias’ should join the ranks of carnivorous plants
04-12-09 12:24 Age: 4 days

Scientists from the Royal Botanic Gardens, Kew and the Natural History Museum believe that carnivorous behaviour in plants is far more widespread than previously thought, with many commonly grown plants – such as petunias – at least part way to being “meat eaters”.



Press Release Published: 4th December 2009



A review paper, Murderous plants: Victorian Gothic, Darwin and modern insights into vegetable carnivory, is published today (4 December 2009) in the Botanical Journal of the Linnean Society.



Carnivorous plants have caught the imagination of humans since ancient times, and they fitted well into the Victorian interest in Gothic horrors. Accounts of man-eating plants published in 19th century works have long since been discredited, but they continue to appear in different media including films (Audrey II in Little Shop of Horrors) and books (Tentacula in the Harry Potter series). Even popular Japanese cartoon Pokémon includes some characters based on carnivorous plants (Bellsprout, Weepinbell and Victreebell).



Carnivorous plants fascinated Charles Darwin, and he and his friend Sir Joseph Hooker (Director of the Royal Botanic Gardens, Kew at that time) had an extensive correspondence concerning them. Darwin’s book Insectivorous Plants played a critical role in the idea that plants could eat animals being generally accepted. Before this, many botanists (including Linnaeus) had refused to accept that this could be the case.



Since Darwin’s time, several groups have been generally recognised as carnivorous plants (including sundews, Venus flytraps and pitcher plants). Various other plants have been suggested as possible carnivores by some authors, but wide acceptance of these has failed to materialise. Defining what constitutes carnivory in plants is a challenge, and authors include or exclude groups of plants on the basis of different sets of criteria. Professor Mark Chase and co-authors from the Royal Botanic Gardens, Kew and the Natural History Museum contend that carnivory and non-carnivory should not be treated as a black and white situation, and they view plants as being on a sliding scale between those that show no carnivorous characteristics and those that are real “meat eaters” such as the Venus flytrap.



Plants like petunias and potatoes have sticky hairs that trap insects, and some species of campion have the common name catchfly for the same reason. However, some of the commonly accepted carnivores have not been demonstrated to have the ability to digest the insects they trap or to absorb the breakdown products. In their paper, Chase et al. review each of the groups of potential carnivores.



Professor Mark Chase, Keeper of the Jodrell Laboratory at the Royal Botanic Gardens, Kew says, “Although a man-eating tree is fictional, many commonly grown plants may turn out to be cryptic carnivores, at least by absorbing through their roots the breakdown products of the animals that they ensnare. We may be surrounded by many more murderous plants than we think.”



Vaughan Southgate, President of the Linnean Society of London says, “This scholarly, beautifully illustrated, review of carnivorous plants and the different levels of carnivory that exist in the plant world by botanists at the Royal Botanic Gardens, Kew and the Natural History Museum makes for fascinating reading.”





Ends

Mike Fay, a co-author of the paper from the Royal Botanic Gardens, Kew, is available for interview. Please contact Bronwyn Friedlander, Bryony Phillips and Tarryn Barrowman in the Royal Botanic Gardens, Kew press office on pr(at)kew.org or 020 8332 5605.



Please contact the Royal Botanic Gardens, Kew press office for a PDF of the paper, Murderous plants: Victorian Gothic, Darwin and modern insights into vegetable carnivory.



Image provided by RBG, Kew. Additional images are available to download from www.kew.org/press/images. Please contact the Royal Botanic Gardens, Kew press office for the user name and password.



For more information about the December issue of the Botanical Journal of the Linnean Society visit http://www3.interscience.wiley.com/journal/121583649/grouphome/home.html



Notes to editors



The Royal Botanic Gardens, Kew is a world famous scientific organisation, internationally respected for its outstanding living collection of plants and world-class Herbarium as well as its scientific expertise in plant diversity, conservation and sustainable development in the UK and around the world. Kew Gardens is a major international visitor attraction. Its landscaped 132 hectares and RBG Kew's country estate, Wakehurst Place, attract nearly 2 million visitors every year. Kew was made a UNESCO World Heritage Site in July 2003 and celebrates its 250th anniversary in 2009. Wakehurst Place is home to Kew’s Millennium Seed Bank, the largest wild plant seed bank in the world. The Royal Botanic Gardens, Kew and its partners have collected and conserved seed from 10 per cent of the world's wild flowering plant species (c.30, 000 species). The aim is to conserve 25 per cent by 2020 and funds are being actively sought in order to continue this vital work.



The Linnean Society of London is the world’s oldest active biological society. Founded in 1788, the Society takes its name from the great Swedish naturalist, Carl Linnaeus (1707-1778) who developed the system of binominal nomenclature. This system today provides the fundamental framework for knowledge of the biota of the Earth, supporting effective conservation measures and the sustainable use of biodiversity. The Society is the custodian of Linnaeus’ original library and collections and is creating a digital archive, enabling full global access. It encourages and communicates scientific advances through its three world-class journals, open meetings and website. The Society’s Fellowship is international and its Fellows are drawn from all walks of life including professional scientists and amateur naturalists. The Society welcomes anyone interested in natural history, in all its forms. www.linnean.org



The Botanical Journal of the Linnean Society is published on behalf of the Linnean Society of London and publishes original papers of relevance to, and reviews of, the taxonomy of all plant groups and fungi, including anatomy, biosystematics, cytology, ecology, ethnobotany, electron microscopy, morphogenesis, palaeobotany, palynology and phytochemistry. www.wiley.com/bw/journal.asp?ref=0024-4074&site=1



Wiley-Blackwell is the international scientific, technical, medical and scholarly publishing business of John Wiley & Sons, with strengths in every major academic and professional field and partnerships with many of the world's leading societies. Wiley-Blackwell publishes over 1,400 peer-reviewed journals as well as 1,500+ new books annually in print and online, as well as databases, major reference works and laboratory protocols. For more information, please visit www.wileyblackwell.com or www.interscience.wiley.com.



Winner of Visit London’s 2008 Kids Love London Best Family Fun Award, the Natural History Museum is also a world-leading science research centre. Through its collections and scientific expertise, the Museum is helping to conserve the extraordinary richness and diversity of the natural world with groundbreaking projects in 68 countries.

De fato, é um proto-carnivorismo. As definições existentes o são até que se mudem.

Viva a ciência que descobre cada vez mais e mais coisas interessantes.

A exemplo temos a Ibicela lutea (tem um segundo nome, não sei qual está em voga).. que tem o mesmo princípio... Quem sabe daqui a alguns milhões de anos.. não teremos alguns tomates com dentes?

Att.

Olha só o que encontrei!!! Eu sabia!! Eu sabia!!!

looooooooool

NOX escreveu:

Esta está simplesmente fantástica A melhor ilustração que este artigo poderia ter

lol.... os tomates assassinos andam aí

Alguém já juntou uma desta carnívoras à colecção? eheh

Eu ja... Aliás a minha mãe no quintal mete numa época do ano esta especie... A minha mãe é sem duvida uma apreciadora de plantas carnivoras eeheheh e não sabe

De notar que o tomate até tem um restinho da ultima refeição nos dentes loooool

Este post surpreendeu-me bastante! Tanto os tomates como as petúnias e as batatas! Impressionante! E as imagens que o Nox enviou vêm mesmo a calhar

a foto é legal hein... imagina ter um tomates destes... inves de vc comer ele, ele é que vai te comer...hahahahaha

Este tópico está bem interessante, sem dúvida tomates e batatas? ena...então queando se faz saldada russa lá em casa estamos a dar cabo das plantas carnívoras....
ihihihih a foto do tomate está execelente, pergunto-me qual será a pasts de dentes que usa, será colgate ou pepsodente? é que os dentes estão branquinhos

Bem...chegamos à conclusão que nós carnivoros, também comemos carnivoras

depois q li isso resolvi fazerum tese
semeei tomate em sphagnum + areia
vamos ver no q vai dar...

e explica lá o que é que esse teste vai provar ???

.

sei lá kkkkk
fiquei ansioso para aumentar minha coleção kkkk
e falando nisso parece que a semente germinou

lolol
Isto já dá para tudo....

lol
tenho um seedling de Solanum lycopersicum

Felipe, esse Solanum lycopersicum cultivado a substrato de plantas carnívoras vai crescer muito mirradinho, acredita que demorar demasiado tempo até ter tomate para a sua salada!

Eu também acho que vai Ricardo... mas tomate cresce que nem mato, muito rápido, aqui em casa quando plantado em terra boa em 3 meses já tenho aqueles mini tomatinhos por todo o lado mas rapidamente ele morre também