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Title: Seasonal trends in photosynthesis and electron transport during the Mediterranean summer drought in leaves of deciduous oaks

The California Mediterranean savanna has harsh summer conditions with minimal soil moisture, high temperature, high incoming solar radiation and little or no precipitation. Deciduous blue oaks, Quercus douglasii Hook. and Arn., are winter-deciduous obligate phreatophytes, transpiring mostly groundwater throughout the summer drought. Our objective for this work is to fully characterize the seasonal trends of photosynthesis in blue oaks as well as the mechanistic relationships between leaf structure and function.
Authors:
 [1] ;  [2] ;  [3] ;  [4]
  1. Univ. of California, Berkeley, CA (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. Univ. of California, Berkeley, CA (United States)
  3. Univ. of California, Berkeley, CA (United States); Japan Agency for Marine-Earth Science and Technology, Yokohama (Japan)
  4. Univ. of California, Berkeley, CA (United States
Publication Date:
OSTI Identifier:
1253292
Report Number(s):
LLNL-JRNL--664018
Journal ID: ISSN 0829-318X
Grant/Contract Number:
FG02-03ER63638; AC52-07NA27344
Type:
Accepted Manuscript
Journal Name:
Tree Physiology
Additional Journal Information:
Journal Volume: 35; Journal Issue: 5; Journal ID: ISSN 0829-318X
Publisher:
Oxford University Press
Research Org:
Univ. of California, Berkeley, CA (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA)
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 59 BASIC BIOLOGICAL SCIENCES blue oak; drought; environmental stress; fluorescence; groundwater; photosynthetic capacity; phreatophyte; PSII; savanna; Vcmax; Quercus douglasii