Английская Википедия:Augustin Pyramus de Candolle

Материал из Онлайн справочника
Перейти к навигацииПерейти к поиску

Шаблон:Short description Шаблон:Redirect Шаблон:For Шаблон:Use dmy dates Шаблон:Infobox scientist Augustin Pyramus (or Pyrame) de Candolle (Шаблон:IPAc-en, Шаблон:IPAc-en, Шаблон:IPA-fr; 4 February 1778Шаблон:Snd9 September 1841) was a Swiss botanist. René Louiche Desfontaines launched de Candolle's botanical career by recommending him at a herbarium. Within a couple of years de Candolle had established a new genus, and he went on to document hundreds of plant families and create a new natural plant classification system. Although de Candolle's main focus was botany, he also contributed to related fields such as phytogeography, agronomy, paleontology, medical botany, and economic botany.

De Candolle originated the idea of "Nature's war", which influenced Charles Darwin and the principle of natural selection.Шаблон:Sfn de Candolle recognized that multiple species may develop similar characteristics that did not appear in a common evolutionary ancestor; a phenomenon now known as convergent evolution. During his work with plants, de Candolle noticed that plant leaf movements follow a near-24-hour cycle in constant light, suggesting that an internal biological clock exists. Though many scientists doubted de Candolle's findings, experiments over a century later demonstrated that "the internal biological clock" indeed exists.

De Candolle's descendants continued his work on plant classification; son Alphonse and grandson Casimir de Candolle contributed to the Prodromus Systematis Naturalis Regni Vegetabilis, a catalog of plants begun by Augustin Pyramus de Candolle.

Early life

Augustin Pyramus de Candolle was born on 4 February 1778 in Geneva, Republic of Geneva, to Augustin de Candolle, a former official, and his wife, Louise Eléonore Brière. His family descended from one of the ancient families of Provence in France, but relocated to Geneva at the end of the 16th century to escape religious persecution.Шаблон:Sfn

At age seven de Candolle contracted a severe case of hydrocephalus, which significantly affected his childhood.Шаблон:Sfn Nevertheless, he is said to have had great aptitude for learning, distinguishing himself in school with his rapid acquisition of knowledge in classical and general literature and his ability to write fine poetry. In 1794, he began his scientific studies at the Collège de Genève, where he studied under Jean Pierre Étienne Vaucher, who later inspired de Candolle to make botanical science the chief pursuit of his life.Шаблон:Sfn

Career in botany

He spent four years at the Geneva Academy, studying science and law according to his father's wishes. In 1798, he moved to Paris after Geneva had been annexed to the French Republic. His botanical career formally began with the help of René Louiche Desfontaines, who recommended de Candolle for work in the herbarium of Charles Louis L'Héritier de Brutelle during the summer of 1798.Шаблон:Sfn The position elevated de Candolle's reputation and also led to valuable instruction from Desfontaines himself.Шаблон:Sfn de Candolle established his first genus, Senebiera, in 1799.Шаблон:Sfn

De Candolle's first books, Plantarum historia succulentarum (4 vols., 1799) and Astragalogia (1802), brought him to the notice of Georges Cuvier and Jean-Baptiste Lamarck. de Candolle, with Cuvier's approval, acted as deputy at the Collège de France in 1802. Lamarck entrusted him with the publication of the third edition of the Flore française (1805–1815),Шаблон:EfnШаблон:SfnШаблон:Sfn and in the introduction entitled Principes élémentaires de botanique, de Candolle proposed a natural method of plant classification as opposed to the artificial Linnaean method.Шаблон:SfnШаблон:Sfn The premise of de Candolle's method is that taxa do not fall along a linear scale; they are discrete, not continuous.Шаблон:Sfn Lamarck had originally published this work in 1778, with a second edition in 1795. The third edition, which bears the name of both Lamarck and de Candolle, was in reality the work of the latter, the former having only lent his name and access to his collection.Шаблон:Sfn

In 1804, de Candolle published his Essai sur les propriétés médicales des plantes and was granted a doctor of medicine degree by the medical faculty of Paris. Two years later, he published Synopsis plantarum in flora Gallica descriptarum. de Candolle then spent the next six summers making a botanical and agricultural survey of France at the request of the French government, which was published in 1813. In 1807 he was appointed professor of botany in the medical faculty of the University of Montpellier, where he would later become the first chair of botany in 1810. His teaching at the University of Montpellier consisted of field classes attended by 200–300 students, starting at 5:00 am and finishing at 7:00 pm.[1]

During this period, de Candolle became a close acquaintance of the Portuguese polymath, José Correia da Serra, who was Portuguese ambassador to Paris and who circulated in an international network of thinkers ranging from the Briton Joseph Banks to the Americans Thomas Jefferson and William Bartram, and the French scholars Antoine Laurent de Jussieu and Georges Cuvier. Correia's endorsement of the idea of emphasizing similarity and symmetry in classifying plants influenced de Candolle, who acknowledged as much in his writing.[2][3]

While in Montpellier, de Candolle published his Théorie élémentaire de la botanique (Elementary Theory of Botany, 1813),Шаблон:Sfn which introduced a new classification system and the word taxonomy.Шаблон:Sfn Candolle moved back to Geneva in 1816 and in the following year was invited by the government of the Canton of Geneva to fill the newly created chair of natural history.Шаблон:Sfn

Файл:Genève-Maison Candolle (1).jpg
de Candolle family home in Geneva

De Candolle spent the rest of his life in an attempt to elaborate and complete his natural system of botanical classification. de Candolle published initial work in his Regni vegetabillis systema naturale, but after two volumes he realized he could not complete the project on such a large scale. Consequently, he began his less extensive Prodromus Systematis Naturalis Regni Vegetabilis in 1824. However, he was able to finish only seven volumes, or two-thirds of the whole.Шаблон:Sfn Even so, he was able to characterize over one hundred families of plants, helping to lay the empirical basis of general botany.Шаблон:Sfn Although de Candolle's main focus was botany, throughout his career he also dabbled in fields related to botany, such as phytogeography, agronomy, paleontology, medical botany, and economic botany.Шаблон:Sfn

In 1827 he was elected an associated member of the Royal Institute of the Netherlands.[4]

Later life

Augustin de Candolle was the first of four generations of botanists in the de Candolle dynasty.Шаблон:Sfn He married Mademoiselle Torras and their son, Alphonse Pyramus de Candolle, eventually succeeded to his father's chair in botany and continued the Prodromus.Шаблон:Sfn Casimir de Candolle, Augustin de Candolle's grandson, also contributed to the Prodromus through his detailed, extensive research and characterization of the plant family Piperaceae.Шаблон:Sfn Augustin de Candolle's great-grandson, Richard Émile Augustin de Candolle, was also a botanist.Шаблон:Sfn Augustin de Candolle died on 9 September 1841 in Geneva, after being sick for many years.Шаблон:Sfn That same year, he was elected as a member of the American Philosophical Society.[5]

In 2017, a book[6] was written in French about his life and one of his greatest contributions, the Botanical Garden of Geneva.

Legacy

He is remembered in the plant genera Candollea and Candolleodendron,Шаблон:Sfn several plant species like Eugenia candolleana or Diospyros candolleana and the mushroom Psathyrella candolleana.[7] Candollea, a scientific journal that publishes papers on systematic botany and phylotaxonomy,Шаблон:Sfn was named after de Candolle and his descendants in honor of their contribution to the field of botany.Шаблон:Sfn He was a mentor to the French-Mexican botanist Jean-Louis Berlandier and is credited with encouraging Marie-Anne Libert to investigate cryptogamic flora.[8]

de Candolle also had the unexpected distinction of triggering the adoption of pre-paid postage in the Canton and City of Geneva, in a long address which he gave to the governing council in 1843. This led to them issuing Switzerland's second postage stamp, the famous Double Geneva later in that year [9] (see also postage stamps and postal history of Switzerland).

Classification system

Шаблон:Main De Candolle was the first to put forward the idea of "Nature's war",Шаблон:Sfn writing of plants being "at war one with another" with the meaning of different species fighting each other for space and resources.Шаблон:Sfn Charles Darwin studied de Candolle's "natural system" of classification in 1826 when at the University of Edinburgh,Шаблон:Sfn and in the inception of Darwin's theory in 1838 he considered "the warring of the species", adding that it was even more strongly conveyed by Thomas Malthus,[10] producing the pressures that Darwin later called natural selection.Шаблон:Sfn In 1839 de Candolle visited Britain and Darwin invited him to dinner, allowing the two scientists the opportunity to discuss the idea.Шаблон:Sfn

De Candolle was also among the first to recognize the difference between the morphological and physiological characteristics of organs. He ascribed plant morphology as being related to the number of organs and their positions relative to each other rather than to their various physiological properties. Consequently, this made him the first to attempt to attribute specific reasons for structural and numerical relationships amongst organs, and thus to distinguish between major and minor aspects of plant symmetry.Шаблон:Sfn To account for modifications of symmetry in parts of different plants, an occurrence that could hinder the discovery of an evolutionary relationship, de Candolle introduced the concept of homology.Шаблон:Sfn

Chronobiology

Шаблон:Further De Candolle also made contributions to the field of chronobiology. Building upon earlier work on plant circadian leaf movements contributed by such scientists as Jean-Jacques d'Ortous de Mairan and Henri-Louis Duhamel du Monceau, de Candolle observed in 1832 that the plant Mimosa pudica had a free-running period of leaf opening and closing of approximately 22–23 hours in constant light, significantly less than the approximate 24-hour period of the Earth's light-dark cycles.Шаблон:SfnШаблон:Sfn Since the period was shorter than 24 hours, he hypothesized that a different clock had to be responsible for the rhythm; the shortened period was not entrained—coordinated—by environmental cues, thus the clock appeared to be endogenous.Шаблон:Sfn Despite these findings, a number of scientists continued to search for "factor X", an unknown exogenous factor associated with the earth's rotation that was driving circadian oscillations in the absence of a light dark schedule, until the mid-twentieth century.Шаблон:Sfn In the mid-1920s, Erwin Bunning repeated Candolle's findings and came to similar conclusions, and studies that showed the persistence of circadian rhythm in the South Pole and in a space lab further confirmed the existence of oscillations in the absence of environmental cues.Шаблон:Sfn

Published works

Шаблон:Refbegin

Шаблон:Refend

See also

Шаблон:Botanist

Notes

Шаблон:Notelist

References

Шаблон:Reflist

Bibliography

Шаблон:Refbegin

Books
Encyclopaedias
Articles
Websites

Шаблон:Refend

External links

Шаблон:Wikisource author

Шаблон:Authority control

Шаблон:Good article

Партнерские ресурсы
Криптовалюты
Магазины
Хостинг
Разное

  1. ↑ Шаблон:Cite journal
  2. ↑ Шаблон:Cite journal
  3. ↑ Шаблон:Cite journal
  4. ↑ Шаблон:Cite web
  5. ↑ Шаблон:Cite web
  6. ↑ P. Bungener, P. Mattille & M.W. Callmander (2017). Augustin-Pyramus de Candolle: une passion, un Jardin. Lausanne, Genève, éditions Favre & CJBG http://www.editionsfavre.com/info.php?isbn=978-2-8289-1644-2
  7. ↑ Шаблон:Cite book
  8. ↑ Шаблон:Cite journal
  9. ↑ P Mirabaud & A de Reuterskiold "The postage stamps of Switzerland 1842–1862" 1898; facsimile reprint 1975 Quarterman Publications, Laurence Massachusetts
  10. ↑ Шаблон:Cite web
Источник — http://wikihandbk.com/ruwiki/index.php?title=Английская_Википедия:Augustin_Pyramus_de_Candolle&oldid=13316111