|
|
|
|
| LEADER |
01000naa a22002652 4500 |
| 001 |
NLM160098149 |
| 003 |
DE-627 |
| 005 |
20231223085426.0 |
| 007 |
tu |
| 008 |
231223s2006 xx ||||| 00| ||eng c |
| 028 |
5 |
2 |
|a pubmed24n0534.xml
|
| 035 |
|
|
|a (DE-627)NLM160098149
|
| 035 |
|
|
|a (NLM)16411931
|
| 040 |
|
|
|a DE-627
|b ger
|c DE-627
|e rakwb
|
| 041 |
|
|
|a eng
|
| 100 |
1 |
|
|a Anfodillo, Tommaso
|e verfasserin
|4 aut
|
| 245 |
1 |
0 |
|a Convergent tapering of xylem conduits in different woody species
|
| 264 |
|
1 |
|c 2006
|
| 336 |
|
|
|a Text
|b txt
|2 rdacontent
|
| 337 |
|
|
|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
|
| 338 |
|
|
|a Band
|b nc
|2 rdacarrier
|
| 500 |
|
|
|a Date Completed 02.03.2006
|
| 500 |
|
|
|a Date Revised 30.09.2020
|
| 500 |
|
|
|a published: Print
|
| 500 |
|
|
|a CommentIn: New Phytol. 2006;169(2):219-21. - PMID 16411925
|
| 500 |
|
|
|a Citation Status MEDLINE
|
| 520 |
|
|
|a A recent theoretical model (the West, Brown and Enquist, WBE model) hypothesized that plants have evolved a network of xylem conduits with a tapered structure (narrower conduits distally) which should minimize the cost of water transport from roots to leaves. Specific measurements are required to test the model predictions. We sampled both angiosperms and gymnosperms (50 trees) growing in different environments with heights ranging from 0.5 to 44.4 m, measuring variations of the xylem-conduit diameter from tree top to stem base. In all trees measured, mean hydraulically weighted conduit diameters (Dh) at the tree top were narrower than those at the stem base. In actively growing trees, the longitudinal variation of Dh showed a degree of tapering in agreement with WBE predictions, while trees close to their maximum height showed slightly lower conduit tapering. Comparing different species, a very good correlation was observed between degree of xylem tapering and tree height (r2 = 0.88; P < 0.0001) independently of any other variable (age, site, altitude, etc.). As predicted by WBE, sampled trees seemed to converge towards similar xylem conduit tapering. However, trees approaching their maximum height had a nonoptimal tapering which appeared insufficient to compensate for the progressive increase in tree height
|
| 650 |
|
4 |
|a Journal Article
|
| 650 |
|
4 |
|a Research Support, Non-U.S. Gov't
|
| 650 |
|
7 |
|a Water
|2 NLM
|
| 650 |
|
7 |
|a 059QF0KO0R
|2 NLM
|
| 700 |
1 |
|
|a Carraro, Vinicio
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Carrer, Marco
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Fior, Claudio
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Rossi, Sergio
|e verfasserin
|4 aut
|
| 773 |
0 |
8 |
|i Enthalten in
|t The New phytologist
|d 1979
|g 169(2006), 2 vom: 01., Seite 279-90
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
|
| 773 |
1 |
8 |
|g volume:169
|g year:2006
|g number:2
|g day:01
|g pages:279-90
|
| 912 |
|
|
|a GBV_USEFLAG_A
|
| 912 |
|
|
|a SYSFLAG_A
|
| 912 |
|
|
|a GBV_NLM
|
| 912 |
|
|
|a GBV_ILN_350
|
| 951 |
|
|
|a AR
|
| 952 |
|
|
|d 169
|j 2006
|e 2
|b 01
|h 279-90
|