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Plant anatomy

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Title: Plant anatomy  
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Plant anatomy

Chloroplasts in leaf cells of the moss Mnium stellare

Plant anatomy or phytotomy is the general term for the study of the internal structure of plants. While originally it included plant morphology, which is the description of the physical form and external structure of plants, since the mid-20th century the investigations of plant anatomy are considered a separate, distinct field, and plant anatomy refers to just the internal plant structures.[1][2] Plant anatomy is now frequently investigated at the cellular level, and often involves the sectioning of tissues and microscopy.[3]

Contents

  • Structural divisions 1
  • History 2
  • See also 3
  • References 4
  • Further reading 5
  • External links 6

Structural divisions

Plant anatomy is often[4] divided into the following categories:

Vascular tissue of a gooseberry vine from Grew's Anatomy of Plants
Flower anatomy
Calyx
Corolla
Androecium
Gynoecium
Leaf anatomy
Stem anatomy
Stem structure
Fruit/Seed anatomy
Ovule
Seed structure
Pericarp
Accessory fruit
Wood anatomy
Bark
Cork
Phloem
Vascular cambium
Heartwood and sapwood
branch collar
Root anatomy
Root structure

History

About 300 BCE Theophrastus wrote a number of plant treatises, only two of which survive, Enquiry into Plants (Περὶ φυτῶν ἱστορία), and On the Causes of Plants (Περὶ φυτῶν αἰτιῶν). He developed concepts of plant morphology and classification, which did not withstand the scientific scrutiny of the Renaissance.

A Swiss physician and botanist, Gaspard Bauhin, introduced binomial nomenclature into plant taxonomy. He published Pinax theatri botanici in 1596, which was the first to use this convention for naming of species. His criteria for classification included natural relationships, or 'affinities', which in many cases were structural.

It was in the late 1600s that plant anatomy became refined into a modern science. Italian doctor and microscopist,

  • Farabee, M.J. (2001) "Plants and their structure" Estrella Mountain Community College, Phoenix, Arizona
  • Botanical Visual Glossary
  • Plant anatomy glossary- University of Rhode Island

External links

  • Eames, Arthur Johnson and MacDaniels, Laurence H. (1947) An Introduction to Plant Anatomy McGraw-Hill, New York
  • Esau, Katherine (1965) Plant Anatomy (2nd edition) Wiley, New York

Further reading

  1. ^ Raven, P. H.; Evert, R. F. and Eichhorn, S. E. (2005) Biology of Plants (7th edition) W. H. Freeman, New York, page 9, ISBN 0-7167-1007-2
  2. ^ Hagemann, Wolfgang (1992). "The Relationship of Anatomy to Morphology in Plants: A New Theoretical Perspective". International Journal of Plant Sciences 153 (3(2)): S38–S48.  
  3. ^ Evert, Ray Franklin and Esau, Katherine (2006) Esau's Plant anatomy: meristems, cells, and tissues of the plant body - their structure, function and development Wiley, Hoboken, New Jersey, xvpage , ISBN 0-471-73843-3
  4. ^ See e.g. Craig, Richard and Vassilyev, Andrey. "Plant Anatomy". McGraw-Hill. Archived from the original on 24 July 2010. 
  5. ^ Bolam, J. (1973). "The botanical works of Nehemiah Grew, FRS (1641-1712)". Notes and Records of the Royal Society of London 27 (2): 219–231.  
  6. ^ Thomas, Hanshaw H. (1960). "Agnes Arber, 1879–1960". Biographical Memoirs of Fellows of the Royal Society 6: 1–11.  
  7. ^ Chaffey, N. (2006). "(Book Review) Esau's Plant Anatomy, Meristems, Cells, and Tissues of the Plant Body: their Structure, Function, and Development. 3rd edn.". Annals of Botany 99 (4): 785–786.  

References

See also

Following World War II, Katherine Esau published, Plant Anatomy (1953), which became the definitive textbook on plant structure in North American universities and elsewhere, it was still in print as of 2006.[7] She followed up with her Anatomy of seed plants in 1960.

The growth of comparative plant anatomy was spearheaded by British botanist Agnes Arber. She published Water Plants: A Study of Aquatic Angiosperms in 1920, Monocotyledons: A Morphological Study in 1925, and The Gramineae: A Study of Cereal, Bamboo and Grass in 1934.[6]

Following Charles Darwin's Origin of Species a Canadian botanist, Edward Charles Jeffrey, who was studying the comparative anatomy and phylogeny of different vascular plant groups, applied the theory to plants using the form and structure of plants to establish a number of evolutionary lines. He published his The Anatomy of Woody Plants in 1917.

British paleobotanists Dunkinfield Henry Scott and William Crawford Williamson described the structures of fossilized plants at the end of the Nineteenth Century. Scott's Studies in Fossil Botany was published in 1900.

Gottlieb Haberlandt, a German botanist, studied plant physiology and classified plant tissue based upon function. On this basis, in 1884 he published Physiologische Pflanzenanatomie (Physiological Plant Anatomy) in which he described twelve types of tissue systems (absorptive, mechanical, photosynthetic, etc.).

A German-Polish botanist, Eduard Strasburger, described the mitotic process in plant cells and further demonstrated that new cell nuclei can only arise from the division of other pre-existing nuclei. His Studien über Protoplasma was published in 1876.

In 1838 German botanist Matthias Jakob Schleiden, published Contributions to Phytogenesis, stating, "the lower plants all consist of one cell, while the higher plants are composed of (many) individual cells" thus confirming and continuing Mirbel's work.

In 1830, Franz Meyen published Phytotomie, the first comprehensive review of plant anatomy.

In 1813 a Swiss botanist, Augustin Pyrame de Candolle, published Théorie élémentaire de la botanique, in which he argued that plant anatomy, not physiology, ought to be the sole basis for plant classification. Using a scientific basis, he established structural criteria for defining and separating plant genera.

In 1812, Johann Jacob Paul Moldenhawer published Beyträge zur Anatomie der Pflanzen, describing microscopic studies of plant tissues.

In 1802, French botanist Charles-François Brisseau de Mirbel, published Traité d'anatomie et de physiologie végétale (Treatise on Plant Anatomy and Physiology) establishing the beginnings of the science of plant cytology.

In the Eighteenth Century, Carolus Linnaeus established taxonomy based on structure, and his early work was with plant anatomy. While the exact structural level which is to be considered to be scientifically valid for comparison and differentiation has changed with the growth of knowledge, the basic principles were established by Linnaeus. He published his master work, Species Plantarum in 1753.

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