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Title: La mayor bacteria jamás descubierta puede verse a simple vista
Source: National Geographic
Spanish Article: https://www.nationalgeographic.es/ciencia/2022/06/la-mayor-bacteria-jamas-descubierta-puede-verse-a-simple-vista
Tools Used: Matecat and Smartcat
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Solemos pensar que las bacterias son organismos tan pequeños que sólo pueden verse a través de un microscopio. Pero los científicos han descubierto una gigantesca bacteria blanca que acecha en las hojas en descomposición de las aguas salobres de un manglar rojo de Guadalupe, en las Antillas Menores.
We tend to think of bacteria as organisms so small that they can only be seen through a microscope. But scientists have discovered a gigantic white bacterium lurking in the decaying leaves of the brackish waters of a red mangrove swamp in Guadeloupe, in the Lesser Antilles.
We tend to think of bacteria as organisms so small that they can only be seen through a microscope. But scientists have discovered a giant white bacterium lurking in the decaying leaves of the brackish waters of a red mangrove swamp in Guadeloupe, Lesser Antilles.
Es tan grande que puede verse fácilmente a simple vista. Pero el tamaño no es el único rasgo sorprendente de este microbio largo y filamentoso; tiene una estructura más compleja que cualquier otra bacteria descubierta anteriormente y, a diferencia de la mayoría, almacena su ADN en pequeños paquetes ordenados.
It is so large that it can be easily seen with the naked eye. But size isn't the only surprising trait of this long, filamentous microbe; it has a more complex structure than any other bacteria previously discovered and, unlike most, stores its DNA in neat little packages.
It is so large that it can be easily seen with the naked eye. But size is not the only surprising feature of this long, filamentous microbe; it has a more complex structure than any other bacterium previously discovered and, unlike most, stores its DNA in neat little packages.
Las bacterias gigantes descubiertas anteriormente, algunas de las cuales también pueden formar filamentos de centímetros de largo, están compuestas por cientos o miles de células. Pero la nueva bacteria descubierta, que tiene aproximadamente la forma y el tamaño de una pestaña, es una sola célula bacteriana. "Darse cuenta de que una bacteria filamentosa de ese tamaño es, en realidad, una sola bacteria fue un momento de asombro", dice Jean-Marie Volland, biólogo marino del Laboratorio Nacional Lawrence Berkeley (Estados Unidos) que dirigió la investigación, en una entrevista con National Geographic.
The previously discovered giant bacteria, some of which can also form centimeter-long filaments, are made up of hundreds or thousands of cells. But the newly discovered bacterium, which is roughly the shape and size of an eyelash, is a single bacterial cell. “Realizing that a filamentous bacterium that size is actually a single bacterium was a moment of wonder,” says Jean-Marie Volland, a marine biologist at Lawrence Berkeley National Laboratory who led the research, in an interview with National Geographic.
The previously discovered giant bacteria, some of which can also form centimeter-long filaments, are composed of hundreds or thousands of cells. But the newly discovered bacterium, which is roughly the shape and size of an eyelash, is a single bacterial cell. "Realizing that a filamentous bacterium of that size is actually a single bacterium was a moment of astonishment," says Jean-Marie Volland, a marine biologist at Lawrence Berkeley National Laboratory (United States) who led the research, in an interview with National Geographic.
Los científicos han bautizado al microbio como Thiomargarita magnifica por su tamaño y por las perlas de azufre que se encuentran en el interior de la célula. T. magnífica no sólo es más de 1000 veces mayor que una bacteria típica, sino que también es más larga que muchos animales pluricelulares, como las moscas de la fruta. En una conferencia de prensa el martes, Vollard dijo que "descubrir esta bacteria es como encontrar un ser humano que sea tan alto como el Everest".
Scientists have named the microbe Thiomargarita magnifica because of its size and the sulfur beads found inside the cell. T. magnifica is not only more than 1000 times larger than a typical bacterium, but it is also longer than many multicellular animals, such as fruit flies. At a press conference on Tuesday, Vollard said that "discovering this bacteria is like finding a human being who is as tall as Everest."
Scientists have named the microbe Thiomargarita magnifica because of its size and the sulfur beads inside the cell. T. magnifica is not only more than 1,000 times larger than a typical bacterium, but also longer than many multicellular animals, such as fruit flies. At a press conference on Tuesday, Vollard said that "discovering this bacterium is like finding a human being that is as tall as Everest."
"El descubrimiento de esta nueva bacteria Thiomargarita nos hace apreciar la increíble diversidad del mundo microbiano, y las intrincadas adaptaciones estructurales y genómicas de las bacterias que les permiten crecer hacia tamaños celulares que nadie hubiera esperado", afirma Andreas Teske, biólogo marino de la Universidad de Carolina del Norte en Chapel Hill (Estados Unidos). Teske codescubrió el anterior récord de tamaño, Thiomargarita namibiensis.
"The discovery of this new Thiomargarita bacterium makes us appreciate the incredible diversity of the microbial world, and the intricate structural and genomic adaptations of the bacteria that allow them to grow to cell sizes that no one would have expected," says Andreas Teske, a marine biologist at the University of North Carolina at Chapel Hill in the United States. Teske co-discovered the previous size record, Thiomargarita namibiensis.
"The discovery of this new bacterium Thiomargarita makes us appreciate the incredible diversity of the microbial world, and the intricate structural and genomic adaptations of bacteria that allow them to grow to cell sizes that no one would have expected," says Andreas Teske, a marine biologist at the University of North Carolina at Chapel Hill (USA). Teske co-discovered the previous size record, Thiomargarita namibiensis.
Se trata de un ejemplo impresionante de que las bacterias son mucho más complejas, organizadas y versátiles de lo que esperamos, afirma Chris Greening, microbiólogo de la Universidad de Monash (Australia), que no participó en el descubrimiento. "Las bacterias siguen desafiando las descripciones de los libros de texto sobre ellas".
This is an impressive example that bacteria are much more complex, organized and versatile than we expect, says Chris Greening, a microbiologist at Monash University in Australia who was not involved in the discovery. “Bacteria continue to defy textbook descriptions of them.”
This is an impressive example that bacteria are much more complex, organized and versatile than we expect, says Chris Greening, a microbiologist at Monash University, Australia, who was not involved in the discovery. "Bacteria continue to defy textbook descriptions of them".
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