TY  - BOOK
AU  - Nobel,P.S.
AU  - Smith,S.D.
TI  - High and low temperature tolerances and their relationships to distribution of agaves
KW  - ABSORPLANCE
KW  - ACCLIMATION
KW  - AGAVACEAE
KW  - COLD
KW  - CRASSULACEAN ACID METABOLISM (CAM)
KW  - DESERT
KW  - HEAT
KW  - LEAF
KW  - MORPHOLOGY
KW  - SUCCULENT
N2  - The potential influence of tissue tolerances to extreme temperatures on distributional limits was investigated for 15 taxa (14 species)of leaf?succulent agaves from the south?western United States and northern Mexico. As a group, the agaves exhibited a moderate low temperature tolerance of - 11°C (based on a 50 percent inhibition in the number of mesophyll cells taking up a stain, neutral red). However, nearly all of the species were able to tolerate extremely high tissue temperatures of over 60°C. Nocturnal acid accumulation by these crassulacean acid metabolism plants was about 6°C more sensitive to temperature extremes than was cellular membrane integrity
UR  - https://drive.google.com/file/d/1S8GvLlg6XN29k4M2JjpyalujwE1cGEX0/view?usp=drivesdk
ER  -