Cissus quadrangularis, Vitacea, has a succulent stem and shows Crassulacean Acid Metabolism (CAM). Environmental control of CAM is shown with respect to water supply, day temperature, and light intensity. C. quadrangularis, under moderate drought, has a high capacity for dark CO2 fixation and high efficiency of water use (nocturnal transpiration ratio = 8). Severely droughted plants of C. quadrangularis still show dark CO2 fixation although at a reduced rate, which allows a maintenance level metabolism. On the other hand, high temperature and light intensity promote CAM activity in well-watered plants resulting in luxuriant and fast growth. Data indicate that under natural conditions CAM should effectively contribute to the successful adaptation of C. quadrangularis to its environment. © 1980 Oxford University Press.

Environmental influences on CAM activity of cissus quadrangularis

FIORETTO, Antonietta
1980

Abstract

Cissus quadrangularis, Vitacea, has a succulent stem and shows Crassulacean Acid Metabolism (CAM). Environmental control of CAM is shown with respect to water supply, day temperature, and light intensity. C. quadrangularis, under moderate drought, has a high capacity for dark CO2 fixation and high efficiency of water use (nocturnal transpiration ratio = 8). Severely droughted plants of C. quadrangularis still show dark CO2 fixation although at a reduced rate, which allows a maintenance level metabolism. On the other hand, high temperature and light intensity promote CAM activity in well-watered plants resulting in luxuriant and fast growth. Data indicate that under natural conditions CAM should effectively contribute to the successful adaptation of C. quadrangularis to its environment. © 1980 Oxford University Press.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11591/220965
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 6
  • ???jsp.display-item.citation.isi??? ND
social impact