Anatomical, ultrastructural and enzymic studies of leaves of Moricandia arvensis, a C3-C4 intermediate species

Holaday, A. Scott; Shieh, Yuh-Jang; Lee, Kit W.; Chollet, Raymond

doi:10.1016/0005-2728(81)90172-9

Cited by 66 publications

(51 citation statements)

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“…Under conditions approximating those present during r-determinations at low light intensity (60 umol photon m2 s-' and 140 ,l C02/ 1), a somewhat greater propoftion of the initial 14C fixed occurs in the C4 acid fraction, especially in aspartate, indicating an (Tables II and V) show that no marked increase in CO2 assimilation via PEP carboxylase occurs in P. milioides and M. arvensis as the pCO2 is lowered from 310 to 140 Ml C02/ 1. These data are an additional indication that although the PEP carboxylase activity in vitro in leaf extracts of these C3-C4 intermediate species is about twice that in C3 leaf extracts (3,6,9,17), the activity in vivo remains as low as in C3 species.…”

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

Holaday

Chollet²

1983

Plant Physiol.

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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.

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“…ities of certain features of both species, such as the presence of bundle sheath cells with numerous centripetally arranged chloroplasts and mitochondria (9,17), suggest that a C4-type mechanism may be a factor in reducing photorespiration in M. arvensis. Leaves of this crucifer do accumulate substantial amounts of the C4 acid, malate, in the light (17).…”

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confidence: 98%

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

Holaday

Chollet²

1983

Plant Physiol.

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“…For example, a rather well developed Kranz anatomy characterizes the C3/C4 grasses, Panicum and Neurachne (6,7,13), but the dicots Moricandia and some species of Flaveria, which have reduced PR and O2 sensitivity of AP similar to the C3/C4 grasses, have very little Kranz development (14,18). In the F2 and F5 progeny of the C3 X C3/C4 Panicum crosses some plants had well developed BSC with numerous organelles, but without F or PR which approach those ofthe C3/ C4 parents.…”

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confidence: 99%

Photosynthesis, Leaf Anatomy, and Morphology of Progeny from Hybrids between C₃ and C₃/C₄Panicum Species

Bouton

Brown²,

Evans³

et al. 1986

Plant Physiol.

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Species in the Laxa group of Panicum have C3 or C3/C4 photosynthesis based on leaf anatomical and CO2 exchange characteristics. Hybrids were previously made between C3/C4 and C3 species in this group (RH Brown et al. 1985 Plant Physiol 77: 653-658). In this paper, CO2 exchange, morphological, and leaf anatomical characteristics of F2 or Fs progeny from colchicine-induced amphiploids of C3/C4 x C3 hybrids (Panicum milioides Nees ex Trin. 1C3/C41 x Panicum laxum Mez 1C31 and Panicum spathellosum Doell [C3/C4j x Panicum boliviense Hack. 1C31) were studied.There were no differences found in morphology or physiology between the amphiploids and the F, hybrids from which they were produced. In the segregating progeny, CO2 compensation concentration and photorespiration values typical of C3, but not of C3/C4 plants, were recovered. Progeny were found from both crosses which possessed 02 inhibition of apparent photosynthesis typical of the parents, and in the case of the P. milioides x P. laxum cross, leaf anatomy and overall plant morphology typical of the parents were observed in some progeny. The progeny were found to possess recombinations of various traits associated with reduced photorespiration, so that no correlation existed among 02 inhibition of apparent photosynthesis, CO2 compensation concentration, and leaf anatomical traits. One plant was especially noteworthy in possessing leaf anatomy typical of C3/C4 plants, but MATERIALS AND METHODSDescription of the P. milioides (accession 101) x P. laxum (accession 127) and P. spathellosum (accession 109) x P. boliviense (accession 121) F, hybrids can be found in a previous publication (6). These hybrids were, respectively, triploid (2n = 3x = 30) and pentaploid (2n = 5x = 50) and both were pollen sterile and produced no selfed seed. It was therefore necessary to double their chromosome numbers in an attempt to restore fertility. To accomplish this, rooted tillers of the hybrids were soaked in an aqueous solution (1 g L-') of colchicine for 24 h, then rinsed for 2 h in tap water and planted in plastic pots containing a peat-soil mixture. A great deal of plant damage was observed, but as new growth developed approximately 6 weeks later, culms were noticed which contained plump anthers and viable pollen. These sectors were removed, placed in water until roots formed, and then transplanted to pots containing a mixture of equal parts soil, peat, and perlite. Chromosome counts of root tips revealed the pollen fertile P. milioides x P. laxum sectors to be hexaploid (2n = 6x = 60) and the P. spathellosum x P. boliviense sectors to be decaploids (2n = lOx = 100).Seeds were harvested from these amphiploid plants, and seedlings, along with replicated, rooted cuttings of both parents, the F, hybrid and the amphiploid, were established in pots in the greenhouse. The initial screening of segregates was by measuring F in 30-ml syringes as described earlier (6). For this screening plants were grown in a greenhouse maintained at 25 to 35°C during the day and 20 to 25°C at...

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(Apel et al, 1978;Holaday et al, 1981), has attracted the attention of breeders because its traits can be introgressed into cultivated crops to improve their photosynthetic efficiency (Apel et al

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“…Among the species of Brassicaceae in which C 4 species have not yet been found, other C 3 -C 4 intermediate species have also been found within the genera Moricandia, Diplotaxis and Brassica (Apel et al, 1997). M. ar vensis, which was the first-reported C 3 -C 4 intermediate species in the Brassicaceae (Apel et al, 1978;Holaday et al, 1981), has attracted the attention of breeders because its traits can be introgressed into cultivated crops to improve their photosynthetic efficiency (Apel et al, 1984;Toriyama et al, 1987;Takahata, 1990;Takahata and Takeda, 1990;Kirti et al, 1992;Takahata et al, 1993;Razmjoo et al, 1996;Bang et al, 1996Bang et al, , 2002Bang et al, , 2007Ishikawa et al, 2003).…”

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Production of Raphanus sativus (C₃)-Moricandia arvensis (C₃-C₄ intermediate) Monosomic and Disomic Addition Lines with Each Parentl Cytoplasmic Background and their Photorespiratory Characteristics

Bang

Ueno

Wada

et al. 2009

Plant Production Science

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Anatomical, ultrastructural and enzymic studies of leaves of Moricandia arvensis, a C3-C4 intermediate species

Cited by 66 publications

References 22 publications

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

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

Photosynthesis, Leaf Anatomy, and Morphology of Progeny from Hybrids between C₃ and C₃/C₄Panicum Species

Production of Raphanus sativus (C₃)-Moricandia arvensis (C₃-C₄ intermediate) Monosomic and Disomic Addition Lines with Each Parentl Cytoplasmic Background and their Photorespiratory Characteristics

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Anatomical, ultrastructural and enzymic studies of leaves of Moricandia arvensis, a C3-C4 intermediate species

Cited by 66 publications

References 22 publications

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

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

Photosynthesis, Leaf Anatomy, and Morphology of Progeny from Hybrids between C3 and C3/C4Panicum Species

Production of Raphanus sativus (C3)-Moricandia arvensis (C3-C4 intermediate) Monosomic and Disomic Addition Lines with Each Parentl Cytoplasmic Background and their Photorespiratory Characteristics

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

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

Photosynthesis, Leaf Anatomy, and Morphology of Progeny from Hybrids between C₃ and C₃/C₄Panicum Species

Production of Raphanus sativus (C₃)-Moricandia arvensis (C₃-C₄ intermediate) Monosomic and Disomic Addition Lines with Each Parentl Cytoplasmic Background and their Photorespiratory Characteristics