Variation in xylem structure from tropics to tundra: Evidence from vestured pits
Bordered pits play an important role in permitting water flow among adjacent tracheary elements in flowering plants. Variation in the bordered pit structure is suggested to be adaptive in optimally balancing the conflict between hydraulic efficiency (conductivity) and safety from air entry at the pi...
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ftnaturalis:oai:naturalis:423503 2023-05-15T15:10:57+02:00 Variation in xylem structure from tropics to tundra: Evidence from vestured pits Jansen, S. Baas, P. Gasson, P. Lens, F. Smets, E. 2004 application/pdf http://www.repository.naturalis.nl/record/423503 http://www.repository.naturalis.nl/document/449136 unknown http://www.repository.naturalis.nl/record/423503 http://www.repository.naturalis.nl/document/449136 (c) Naturalis Various articles (1091-6490) vol.101 (2004) nr.23 p.8833 xylem structure vestured pits scalariform perforation plates simple perforation plates hydraulic system drought stress 42.42 Article / Letter to the editor 2004 ftnaturalis 2022-09-01T06:22:40Z Bordered pits play an important role in permitting water flow among adjacent tracheary elements in flowering plants. Variation in the bordered pit structure is suggested to be adaptive in optimally balancing the conflict between hydraulic efficiency (conductivity) and safety from air entry at the pit membrane (air seeding). The possible function of vestured pits, which are bordered pits with protuberances from the secondary cell wall of the pit chamber, could be increased hydraulic resistance or minimized vulnerability to air seeding. These functional hypotheses have to be harmonized with the notion that the vestured or nonvestured nature of pits contains strong phylogenetic signals (i.e., often characterize large species-rich clades with broad ecological ranges). A literature survey of 11,843 species covering 6,428 genera from diverse climates indicates that the incidence of vestured pits considerably decreases from tropics to tundra. The highest frequencies of vestured pits occur in deserts and tropical seasonal woodlands. Moreover, a distinctly developed network of branched vestures is mainly restricted to warm habitats in both mesic and dry (sub)tropical lowlands, whereas vestures in woody plants from cold and boreal arctic environments are usually minute and simple. A similar survey of the frequency of exclusively scalariform perforation plates illustrates that the major ecological trend of this feature is opposite that of vestured pits. These findings provide previously undescribed insights suggesting that vessels with vestured pits and simple perforation plates function as an efficient hydraulic system in plants growing in warm environments with periodical or continuous drought stress. Article in Journal/Newspaper Arctic Tundra Naturalis Digital Academic Repository (National Museum of Natural History in the Netherlands) Arctic |
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Open Polar |
collection |
Naturalis Digital Academic Repository (National Museum of Natural History in the Netherlands) |
op_collection_id |
ftnaturalis |
language |
unknown |
topic |
xylem structure vestured pits scalariform perforation plates simple perforation plates hydraulic system drought stress 42.42 |
spellingShingle |
xylem structure vestured pits scalariform perforation plates simple perforation plates hydraulic system drought stress 42.42 Jansen, S. Baas, P. Gasson, P. Lens, F. Smets, E. Variation in xylem structure from tropics to tundra: Evidence from vestured pits |
topic_facet |
xylem structure vestured pits scalariform perforation plates simple perforation plates hydraulic system drought stress 42.42 |
description |
Bordered pits play an important role in permitting water flow among adjacent tracheary elements in flowering plants. Variation in the bordered pit structure is suggested to be adaptive in optimally balancing the conflict between hydraulic efficiency (conductivity) and safety from air entry at the pit membrane (air seeding). The possible function of vestured pits, which are bordered pits with protuberances from the secondary cell wall of the pit chamber, could be increased hydraulic resistance or minimized vulnerability to air seeding. These functional hypotheses have to be harmonized with the notion that the vestured or nonvestured nature of pits contains strong phylogenetic signals (i.e., often characterize large species-rich clades with broad ecological ranges). A literature survey of 11,843 species covering 6,428 genera from diverse climates indicates that the incidence of vestured pits considerably decreases from tropics to tundra. The highest frequencies of vestured pits occur in deserts and tropical seasonal woodlands. Moreover, a distinctly developed network of branched vestures is mainly restricted to warm habitats in both mesic and dry (sub)tropical lowlands, whereas vestures in woody plants from cold and boreal arctic environments are usually minute and simple. A similar survey of the frequency of exclusively scalariform perforation plates illustrates that the major ecological trend of this feature is opposite that of vestured pits. These findings provide previously undescribed insights suggesting that vessels with vestured pits and simple perforation plates function as an efficient hydraulic system in plants growing in warm environments with periodical or continuous drought stress. |
format |
Article in Journal/Newspaper |
author |
Jansen, S. Baas, P. Gasson, P. Lens, F. Smets, E. |
author_facet |
Jansen, S. Baas, P. Gasson, P. Lens, F. Smets, E. |
author_sort |
Jansen, S. |
title |
Variation in xylem structure from tropics to tundra: Evidence from vestured pits |
title_short |
Variation in xylem structure from tropics to tundra: Evidence from vestured pits |
title_full |
Variation in xylem structure from tropics to tundra: Evidence from vestured pits |
title_fullStr |
Variation in xylem structure from tropics to tundra: Evidence from vestured pits |
title_full_unstemmed |
Variation in xylem structure from tropics to tundra: Evidence from vestured pits |
title_sort |
variation in xylem structure from tropics to tundra: evidence from vestured pits |
publishDate |
2004 |
url |
http://www.repository.naturalis.nl/record/423503 http://www.repository.naturalis.nl/document/449136 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Tundra |
genre_facet |
Arctic Tundra |
op_source |
Various articles (1091-6490) vol.101 (2004) nr.23 p.8833 |
op_relation |
http://www.repository.naturalis.nl/record/423503 http://www.repository.naturalis.nl/document/449136 |
op_rights |
(c) Naturalis |
_version_ |
1766341876894400512 |