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Yeo, Yun-Soo,Kim, Soo-Jin,Koo, Bon-Sung,Lee, Churl-Ho,Lee, Shin-Woo The Korean Society of Plant Biotechnology 2004 Plant molecular biology and biotechnology research Vol.6 No.3
Soil-borne fungal pathogens such as Verticillium and Rhizoctonia can colonize in the stem tissue of plant through root and lead to wilting symptoms of plant by blocking. water transportation. During the colonization of Rhizoctonia solani in the vascular tissue of tomato stems, particularly, phenylalanine ammonia-lyase (PAL) gene induction pattern was cyclized showing peak induction at two different time points (10 and 80 h) after fungal spores inoculation in vivo. In leaves or roots, however, no such cycling pattern was observed. The first induction peak may be due to an initial sporulation events leading to a second induction peak by a proliferation of fungal spores to the upper stems or other tissues from an initial spore trapping sites. Tomato PAL gene was also dramatically induced by wounding, light illumination and mercury chloride treatment but was not cyclized. Mercury chloride showed the earliest induction with all tissues even at half an hour after treatment.
Sun Shin Yi,In Koo Hwang,Ji Won Choi,Moo-Ho Won,Je Kyung Seong,Yeo Sung Yoon 대한해부학회 2010 Anatomy & Cell Biology Vol.43 No.3
We observed how the hypothyroid state affects diabetic states and modifies cell proliferation and neuroblast differentiation in the hippocampal dentate gyrus (DG). For this, 0.03% methimazole, an anti-thyroid drug, was administered to 7-week-old, pre-diabetic Zucker diabetic fatty (ZDF) rats by drinking water for 5 weeks, and the animals were sacrificed at 12 weeks of age. At this age, corticosterone levels were significantly increased in the ZDF rats compared to those in the control (Zucker lean control, ZLC) rats. Methimazole (methi) treatment in the ZDF rats (ZDF-methi rats) significantly decreased corticosterone levels and diabetes-induced hypertrophy of adrenal glands. In the DG, Ki67 (a marker for cell proliferation)- and doublecortin (DCX, a marker for neuronal progenitors)-immunoreactive cells were much lower in the ZDF rats than those in the ZLC rats. However, in ZDF-methi rats, numbers of Ki67- and DCX-immunoreactive cells were similar to those in the ZLC rats. These suggest that methi significantly reduces diabetes-induced hypertrophy of the adrenal gland and alleviates the diabetes-induced reduction of cell proliferation and neuronal progenitors in the DG.