<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Kamaluddin, M.</style></author><author><style face="normal" font="default" size="100%">Zwiazek, J. J.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Naphthenic acids inhibit root water transport gas exchange and leaf growth in aspen (Populus tremuloides) seedlings</style></title></titles><keywords><keyword><style  face="normal" font="default" size="100%">greenhouse</style></keyword><keyword><style  face="normal" font="default" size="100%">naphthenic acids</style></keyword><keyword><style  face="normal" font="default" size="100%">trees</style></keyword><keyword><style  face="normal" font="default" size="100%">UofA</style></keyword><keyword><style  face="normal" font="default" size="100%">vegetation characteristics</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2002</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://treephys.oxfordjournals.org/content/22/17/1265.full.pdf</style></url></web-urls></urls><publisher><style face="normal" font="default" size="100%">Tree Physiology </style></publisher><volume><style face="normal" font="default" size="100%">22 </style></volume><pages><style face="normal" font="default" size="100%">5 pages </style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Effects of sodium naphthenates (NAs) on root hy- draulic conductivity (Lp) and gas exchange processes were ex- amined in aspen (Populus tremuloides Michx.) seedlings grown in solution culture. Exposure of roots to NAs for 3 – 5 weeks significantly decreased L p and stomatal conduc- tance. Root-absorbed NAs also decreased leaf chlorophyll concentration, net photosynthesis and leaf growth. Short-term (≤ 2 h) exposure of excised roots to NAs significantly de- creased root water flow (Q v) with a concomitant decline in root respiration. We conclude that NAs metabolically inhibited Lp, likely by affecting water channel activity, and that this inhibi- tion could be responsible for the observed reductions in gas ex- change and leaf growth.</style></abstract><issue><style face="normal" font="default" size="100%">17</style></issue><custom3><style face="normal" font="default" size="100%">http://www.worldcat.org/oclc/111094299</style></custom3><custom4><style face="normal" font="default" size="100%">OSEMB</style></custom4></record></records></xml>