Freeze/thaw stress in Ceanothus of southern California chaparral

  title={Freeze/thaw stress in Ceanothus of southern California chaparral},
  author={Frank W. Ewers and Michael C. Lawson and Timothy J. Bowen and Stephen D. Davis},
Freeze/thaw stress was examined in chaparral shrubs of the genus Ceanothus to determine the interactive effects of freezing and drought and to consider which is the more vulnerable component, the living leaves (symplast) or the non-living water transport system (apoplast). We hypothesized that where Ceanothus species co-occurred, the more inland species C. crassifolius would be more tolerant of low temperatures than the coastal species C. spinosus, both in terms of leaf survival (LT50, or the… CONTINUE READING


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