CO2-Kompensationspunkt und Blattanatomie bei Arten der Gattung Moricandia DC. (Cruciferae)

Apel, P.; Ohle, Harald

doi:10.1016/s0015-3796(17)30548-6

Cited by 31 publications

(16 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In contrast to L. esculentum, there was no significant influence of lowering the 02 concentration from 21% to 2% on the T of these Flaveria species. The T of the intermediate Flaveria species are lower than or comparable with those typically reported for the C3-C4 intermediate species in Panicum (6,14), Moricandia (2,11,25), and Mollugo (22). Recently, Apel and Maass (1) also reported that F. anomala and F. pubescens possess an intermediate T between the C3 and C4 Flaveria species at 21% 02.…”

supporting

confidence: 73%

See 1 more Smart Citation

Photosynthetic Characteristics of C₃-C₄ Intermediate Flaveria Species

Ku¹,

Monson²,

Littlejohn³

et al. 1983

Plant Physiol.

134

View full text Add to dashboard Cite

All available evidence suggests that C4 plants have evolved from ancestors possessing the C3 pathway of photosynthesis and this has occurred independently many times in taxonomically diverse groups (3,21). At present, the precise evolutionary transition, at the anatomical, physiological, and biochemical levels, from a C3 to a C4 plant is not clear. It is generally believed that studies of C3-C4 intermediate species might provide insight into the evolution of C4 photosynthesis. In addition, since most of the world's important crops are C3 plants, there has been considerable interest in improving their productivity by screening for mutants with reduced rates of photorespiration or by incorporating C4 characteristics into C3 plants (3,19,20). Thus, the search for naturally '

show abstract

supporting

confidence: 73%

“…Since 1975, naturally occurring species intermediate between C3 and C4 plants have been found in the genera Panicum (6), Mollugo (22), and Moricandia (2). The intermediate nature of these species is based on Kranz-like leaf anatomy, low photosynthetic CO2 compensation point, and a reduced level ofphotorespiration.…”

mentioning

confidence: 99%

Photosynthetic Characteristics of C₃-C₄ Intermediate Flaveria Species

Ku¹,

Monson²,

Littlejohn³

et al. 1983

Plant Physiol.

134

View full text Add to dashboard Cite

show abstract

“…arvensis (Tables II and III) which could account for the reduced photorespiratory activity in this species relative to that in C3 plants (1,8 (13) which indicate that a limited C4 cycle is responsible for assimilating -25% of the initial CO2 fixed by P. milioides at atmospheric levels of CO2. No differences in the environmental conditions used in these studies during the growth of the plants and during the 14C02 incorporation experiments are known to have produced these seemingly contradictory results.…”

Section: Discussionmentioning

confidence: 97%

Photosynthetic/Photorespiratory Carbon Metabolism in the C₃-C₄ Intermediate Species, Moricandia arvensis and Panicum milioides

Holaday

Chollet²

1983

Plant Physiol.

View full text Add to dashboard Cite

ABSTRACrThe distribution of "C in photosynthetic metabolites of two naturaly occurring higher plants with reduced photorespiration, Moricandia arvensis and Panicum milioides, in pulse and pulse-chase "CO2 incorporation experiments was similar to that for the C3 species, M. foetida and Glycine max. After 6 seconds of "CO2 incorporation, only about 6% of the total "C fixed was in malate and aspartate in both M. ariensis and P. milioides. The apparent turnover of the C4 acids was very slow, and malate accumulated during the day in M. ariensis. Thus ( 13) and suggest that possibly photorespiration is reduced by an efficient CO2 recycling mechanism. However, no data are presented to support this suggestion. Thus, it is no longer certain that a C4 cycle operates in P. milioides, but no information exists which indicates the presence of some other mechanism to reduce photorespiration in either this species or M. arvensis.Our study examines the extent to which C4 acid metabolism is involved in the photosynthetic/photorespiratory carbon metabolism of M. arvensis and P.

show abstract

“…At present, there has been considerable interest in improving the productivity of C3 species by screening for lines with reduced rates of photorespiration (23). Recently, one approach to this problem has been to identify the naturally occurring plant species (29), Panicum (4,12,22,27), Moricandia (1,15), Flaveria (2,16,20), and most recently Neurachne (10 Preparation of Leaf Tissue Extract for Enzyme Assay. Leaf samples (1.0-1.5 g) were rapidly homogenized at 4°C using a prechilled mortar and pestle with a pinch of acid washed sand and 1.5 ml of ice cold (0°C) extraction medium.…”

mentioning

confidence: 99%