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111.
112.
Zide BM 《Plastic and reconstructive surgery》2005,115(6):1787-1788
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114.
Molecular phylogenetics of Stenodermatini bat genera: congruence of data from nuclear and mitochondrial DNA 总被引:2,自引:1,他引:1
Van den Bussche RA; Baker RJ; Wichman HA; Hamilton MJ 《Molecular biology and evolution》1993,10(5):944-959
Within the tribe Stenodermatini the systematics of the complex of species
allied with the genus Artibeus has generated several alternative
phylogenetic hypotheses. The most recent treatment recognized four genera
(Artibeus, Dermanura, Enchisthenes, and Koopmania) and suggested that the
most recent common ancestor of these four genera would include the common
ancestor of all other currently recognized Stenodermatini genera except
Sturnira. To test this hypothesis, we examined an EcoRI-defined nuclear
satellite DNA repeat and 402 bp of DNA sequence variation from the
mitochondrial cytochrome b gene. Phylogenetic conclusions based on Southern
blot analyses, in situ hybridization, and mitochondrial DNA sequence data
indicate that Enchisthenes is not closely related to Dermanura, Artibeus,
or Koopmania and that Dermanura, Artibeus, and Koopmania shared a common
ancestor after diverging from the remainder of the Stenodermatini. If our
conclusions are correct, then justification for recognizing Dermanura and
Koopmania as generically distinct from Artibeus must be based on the
magnitude of difference that distinguishes each rather than on the
conclusion that to place them as congeneric with Artibeus creates a
paraphyletic taxon.
相似文献
115.
本文记述河南省北部太行山区的花蝇科泉种蝇属一新种。模式标本保存在中国科学院上海昆虫研究所。突额泉种蝇Pegohylemyia convexifrons Fan,Chen et Chen,H.,新种(图1-3) :体长6-7mm。头长为头高的0.9倍;眼具疏短微毛;额等于或略宽于前单眼宽,间额黑,突出于侧额,向前扩展成很宽的三角形,色转红褐,侧额上端极狭,向前亦渐宽;间额鬃2对,稍短于单眼鬃,下眶鬃约8-10,在列外侧和列间尚杂有少数细毛,在下眶鬃列内侧的间额边缘每侧有一、二行不整齐共约十余个内倾鬃状毛和细毛;头前面粉被银白,但沿侧额内缘暗色;前额宽约为触角第三节的1.4倍,侧颜向下去明 相似文献
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合夜蝇属Syngamoptero Schnabl,1902隶属蝇科夜蝇亚科Egininae。Eginiclla, Magma和Tertsiuseginia均为本属异名,已知有下列5种,其中2种分布于我国。 1.Syngamoptera amurensis Schnabl,1902 苏联海参威,日本。 2.Syngamoplera brunnescens(Malloch,1925)中国台湾、四川松潘。 相似文献
119.
S.D. HA S.D. PILLAI S.C. RICKE 《Journal of Rapid Methods and Automation in Microbiology》1995,4(1):77-85
The present study was designed to evaluate cycloheximide as a potential media amendment to prevent fungal overgrowth on selective media for salmonellae enumeration. The objectives were to determine the effect of cycloheximide on Salmonella spp growth rates and to determine the effect of cycloheximide addition on Salmonella enumeration in selective media. The bacteria tested included two strains of Salmonella typhimurium (NO/NA and LT2) and one strain of Salmonella arizonae. All strains were grown in tryptic soy broth containing cycloheximide to determine the effect of cycloheximide on bacterial specific growth rates. The growth rate of all strains grown in tryptic soy broth were not significantly influenced by addition of cycloheximide at concentrations up to 1,000 mg/L. Growth rates of S. typhimurium NO/NA in minimal media were significantly decreased by addition of cycloheximide aerobically (300 mg/L) and anaerobically (600 mg/L). However, S. typhimurium NO/NA populations on brilliant green agar, MacConkey agar, and from selenite cysteine broth and tetrathionate broth were not affected by cycloheximide additions at concentrations up to 1,000 mg/L. Cycloheximide has potential as a fungistat additive for salmonellae selective media. 相似文献
120.
Bud formation capacity of callus formed from thin epidermal cell loyers excised from floral branches of Nicotiana tabacum cv. Wise. 38. Subepidermal cells of thin tissue pieces with a few cell layers were capable of forming eitber buds, roots, (lowers or non-organ ogenetic callus. To determine wheiher this calltjs is able to dirferentiate into organs, we transferred it to media inducing eitber flowers, or buds, or roots. In this paper, we study ibe capacity of lbe callus to form buds. In 50% of the cases, the explants (being maintained for I day to 2 years in callus media) can still express the capacity to form buds. This percentage increased with increased agar concentration of the culture media. At the histological level, non-organogenetic callus is characterized by the absence of tracheid differentiation, whereas in the organogenetic callus, iracheids were induced after their transfer into a ‘Bud medium’ and indicate an organogenetic differentiation pattern. 相似文献