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Some Characteristics of Crassulacean Acid Metabolism in Five Nonsucculent Scrub Species Under Natural Semiarid Conditions

PUBLISHED | 1979
DOI | 10.1016/S0044-328X(79)80159-2
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Abstract
Summary Leaves of five nonsucculent scrub species, Carissa spinarum , Maba buxifolia , Gymnosporia emarginata , Flacourtia sepiaria and Dodonaea viscosa exhibited some features of Crassulacean acid metabolism (CAM) under natural semiarid conditions. The occurrence of some characteristics of CAM in these species was exemplified by the nocturnal stomatal conductance, dark carbon assimilation and high activity of phosphoenolpyruvate carboxylase, resulting in the greater degree of dark acidification. The detection of ribulose bisphosphate carboxylase activity and the low δ 13 C values ranged from -24.5 to -29.1 %0 suggested that these five species also utilize reductive pentose phosphate cycle of photosynthesis. The five species exhibiting some CAM characteristics are suggested to be grouped under flexible CAM species which fix carbon dioxide in the light or darkness under natural semiarid conditions. Further, these five species belonged to five diverse dicotyledonous families which hitherto are not known to possess any CAM characteristics.
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1967 in Planta [IF: 3.36]
Karl Fischer7
Estimated H-index: 7
(Darmstadt University of Applied Sciences),
Manfred Kluge17
Estimated H-index: 17
(Darmstadt University of Applied Sciences)
Cited 57 Source Cite this paper
1967 in Planta [IF: 3.36]
Karl Fischer7
Estimated H-index: 7
(Darmstadt University of Applied Sciences),
Manfred Kluge17
Estimated H-index: 17
(Darmstadt University of Applied Sciences)
1. Transpiration und CO2-Aufnahme zeigen bei Bryophyllum daigremontianum sowohl im Licht als auch im Dunkel vollige Gleichlaufigkeit. Die charakteristische Kurve des CO2-Austausches (massive CO2-Aufnahme im Dunkel, teilweise Unterdruckung der CO2-Aufnahme im Licht) bleibt erhalten, wenn die Epidermis der Blatter entfernt wird. Der Rhythmus des Transpirationsverlaufes geht bei dieser Masnahme verlo...
Ref 3Cited 73 Source Cite this paper
1973 in Planta [IF: 3.36]
O. L. Lange20
Estimated H-index: 20
(University of Würzburg),
Manfred Kluge17
Estimated H-index: 17
(Darmstadt University of Applied Sciences),
Schmid R ... (1 others)
Ref 9Cited 61 Source Cite this paper
C. B. Osmond (Australian National University)
Photosynthetic metabolism in plants capable of Crassulacean acid metabolism (CAM) may involve the net fixation of C02 in the preceeding dark period or the net fixation of C02 in the light. The properties of these two carboxylation reactions have been examined and evi­ dence suggesting that dark fixation is essentially a C4-like process and light fixation is essentially a C3-like photosynthetic pro...
Ref 19Cited 30 Source Cite this paper
1960 in Annual Review of Plant Biology [IF: 22.81]
and S L Ranson1
Estimated H-index: 1
,
M Thomas1
Estimated H-index: 1
Cited 195 Source Cite this paper
1975 in Botany [IF: 1.22]
E. Nalborczyk1
Estimated H-index: 1
,
R. D. Hill1
Estimated H-index: 1
,
L. J. Lacroix1
Estimated H-index: 1
The influence of day length, light quality, temperature, drought, and oxygen concentration on gas exchange of Kalanchoe daigremontiana was investigated. The ratio of photosynthesis to dark CO2 fixation with plants under a long-day and short-warm-night regime was 2.0 and under a short-day and long-cool-night regime, 0.2. With drought conditions this value may be less than 0.02. Under low oxygen con...
Cited 39 Source Cite this paper
V.S.R. Das1
Estimated H-index: 1
(Sri Venkateswara University),
A.S. Raghavendra1
Estimated H-index: 1
(Crops Research Institute)
Summary Malonate inhibited phosphoenolpyruvate carboxylase activity in crude extracts of Setaria italica Beauv. and Pennisetum typhoides S & H leaves. Kinetic studies revealed the competetive inhibition of partially purified phosphoenolpyruvate carboxylase preparation from Setaria italica . Glucose-6-phosphate activated the enzyme. Oxalacetate also competetively inhibited the enzyme and malate in ...
Cited 26 Source Cite this paper
1968 in New Phytologist [IF: 7.33]
D. J. Pearson1
Estimated H-index: 1
(Makerere University),
N. A. Ndegwe1
Estimated H-index: 1
(Makerere University),
T. R. Milburn2
Estimated H-index: 2
(Makerere University)
Summary The content of various metabolic intermediates has been determined in material from several species of succulent plants known to show a Crassulacean acid metabolism, grown under natural conditions at Kampala, Uganda. Free titratable acidity, malate, citrate and isocitrate, present in considerable amounts, and various keto-acids present in relatively small amounts, have been measured both a...
Cited 56 Source Cite this paper
H. Craig72
Estimated H-index: 72
(University of Chicago)
Abstract Seventy-four mass spectrometric analyses have been made on eight isotopic standards for carbon and oxygen. The standards reported on are the National Bureau of Standards limestone, water, and graphite reference samples, the Solenhofen standard used by Niee for absolute measurements, and the carbonate standards used by the Stockholm, Basel, Wellington and Chicago laboratories. The basic me...
Cited 3213 Source Cite this paper
Cited by3
I. Madhusudana Rao2
Estimated H-index: 2
(Sri Venkateswara University),
V.S.R. Das1
Estimated H-index: 1
(Sri Venkateswara University),
P.M. Swamy1
Estimated H-index: 1
(Sri Venkateswara University)
Summary The influence of two herbicides, paraquat or 2,4,5-T on the in vitro as well as in vivo activity of phosphoenolpyruvate carboxylase from leaves of six nonsucculent scrub species was investigated. The plants, all native and important constituents of the scrubland vegetation, included Carissa spinarum L., Maba buxijolia Cl. , Flacourtia sepiaria Roxb. , Chomelia asiatica O. Kze. , Gymnospori...
Ref 13Cited 1 Source Cite this paper
Craig E. Martin14
Estimated H-index: 14
(University of Kansas),
James A. Teeri1
Estimated H-index: 1
,
Anne E. Lubbers1
Estimated H-index: 1
The correlation between succulence and Crassulacean acid metabolism (CAM) was investigated in 28 succulent species growing in various habitats throughout North Carolina. Three species (Opuntia compressa, Agave virginica, and Tillandsia usneoides) exhibited diurnal fluctuations in tissue titratable acidity, nighttime uptake of ~14CO2, and a high carbon isotope ratio (~δ13C), all indicators of CAM. ...
Cited 25 Download Pdf Cite this paper
2016 in Photosynthesis Research [IF: 3.86]
Sailaja V. Elchuri4
Estimated H-index: 4
(Sankara Nethralaya),
Govindjee36
Estimated H-index: 36
(University of Illinois at Urbana–Champaign)
We present here the life and research of V. S. Rama Das, a distinguished Indian botanist who specialized in photosynthesis. He was the first to purify chloroplasts that were free of mitochondrial contamination. He then studied C4, C3–C4 intermediate and CAM pathways, as well as their taxonomic distribution in tropical climates. His most valuable legacy is that he, as a philosopher, inspired and gu...
Download Pdf Cite this paper