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Two New Species of The Genus Tmarus(Araneae, Thomisidae) from China
Yin Chang Min, Peng Xian-Jin, Gong Lian Su, 김주필(Joo Pil Kim) 한국거미연구소 2004 한국거미 Vol.20 No.1
게거미과의 중국산 신종인 Tmarus yani와 Tmarus gongi을 보고하고자 한다. The present paper deals with two new species, Tmarus yani sp. novo and Tmarus gongi sp. nov., from China. Type specimens are deposited at College of Life Sciences, Hunan Normal University. Measurements are in millimeter.
Zhi-Fang Lin,Nan Liu,Gui-Zhu Lin,Chang-Lian Peng 한국식물학회 2009 Journal of Plant Biology Vol.52 No.4
Leaf discs of Alocasia macrorrhiza were treated with various stress factors, including two photo-oxidants, methyl viologen (MV) or riboflavin (RB); three pollutants, sodium bisulphite (NaHSO3), or the heavy metals lead or cadmium; or an osmotic medium, polyethylene glycol 6000. The in situ localisation sites for O2 − generation were identified using specific dye nitro blue tetrazolium as a probe. The level of superoxide production was determined by scanning the blue-stained formazan area and was defined as the percentage of pixels from the stained portion versus the total number of pixels in the entire leaf disc area. All stress factors induced the generation of O2 − in a time- or concentration-dependent pattern. Although superoxide production also was enhanced by longer time periods in untreated discs (control), the degree to which this occurred was less than that measured in leaves treated with either MV or RB. Generation sites were primarily found in the chloroplasts of stomatal guard cells and in the plasma membrane of the epidermis and mesophyll cells, indicating that they were most responsive to stress conditions. Nevertheless, the site of O2 − generation varied among these stress factors.