Publication Date
1985
Location
Kyoto Japan
Description
The Dichotomiflora group of the genus Panicum includes two leaf anatomical variations of NAD-malic enzyme (ME) type C4 species; one with choroplasts centrifugally arranged in Kranz cells (chlorencymatous bundle sheath cells) and the other with chloroplasts centripetally arranged in Kranz cells (hereafter referred to as NAD-ME(F) and NAD-ME(P) species, respectively). We examined various characteristics related to leaf anatomy and vegetavive growth to clarify the differences between two type species. NAD-ME(F) species had a paradermally longer Kranz call and had higher percentage of Kranz call area to total cross-sectional leaf blade area than NAD-ME(P) species. At the 6th-7th leaf stage, NAD-ME(F) species were greater in quantitative characters related to growth, especially, in leaf area (2.7 times), than NAD-ME(P) species. Relative vegetative growth rate of NAD-ME(F) species was 1.3 times greater than that of NAD-ME(P) species, which seems to be caused by high leaf area ratio (1.3 times). The differences in leaf anatomy and vegetative growth presented in this study suggest that NAD-ME(F) and NAD-ME(P) species in the Dichotomiflora group may be adapted to different environmental condition, although they are included in the s.ame taxonomic group.
Citation
Ohsugi, Ryu and Murata, Takao, "Differences in Leaf Anatomy and Vegetative Growth of Panicum Species in the Dichotomiflora Group" (1985). IGC Proceedings (1985-2023). 1.
(URL: https://uknowledge.uky.edu/igc/1985/ses3/1)
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Differences in Leaf Anatomy and Vegetative Growth of Panicum Species in the Dichotomiflora Group
Kyoto Japan
The Dichotomiflora group of the genus Panicum includes two leaf anatomical variations of NAD-malic enzyme (ME) type C4 species; one with choroplasts centrifugally arranged in Kranz cells (chlorencymatous bundle sheath cells) and the other with chloroplasts centripetally arranged in Kranz cells (hereafter referred to as NAD-ME(F) and NAD-ME(P) species, respectively). We examined various characteristics related to leaf anatomy and vegetavive growth to clarify the differences between two type species. NAD-ME(F) species had a paradermally longer Kranz call and had higher percentage of Kranz call area to total cross-sectional leaf blade area than NAD-ME(P) species. At the 6th-7th leaf stage, NAD-ME(F) species were greater in quantitative characters related to growth, especially, in leaf area (2.7 times), than NAD-ME(P) species. Relative vegetative growth rate of NAD-ME(F) species was 1.3 times greater than that of NAD-ME(P) species, which seems to be caused by high leaf area ratio (1.3 times). The differences in leaf anatomy and vegetative growth presented in this study suggest that NAD-ME(F) and NAD-ME(P) species in the Dichotomiflora group may be adapted to different environmental condition, although they are included in the s.ame taxonomic group.
