نتایج جستجو برای: marchantia convoluta

تعداد نتایج: 424  

Journal: :Biochemical Society transactions 2000
H Okuyama S Hagiwara T Okamoto K Kato

A suspension culture of the moss Marchantia polymorpha was incubated with either [3H]ethanolamine or [3H]myristic acid, precursors of a glycosylphosphatidylinositol (GPI) anchor. By both of these a secretory protein of 47 kDa was consistently labelled. Amino acid composition analysis of the chromatographically purified 47-kDa protein exhibited the occurrence of ethanolamine and glucosamine at a...

احمد مجد سارا مهران‎فر سعید شیرزادیان صدیقه مهرابیان

بیماری‎های باکتریایی و قارچی، از جمله بیماری‎های رایج در زندگی انسان هستند و درمان با آنتی‎بیوتیک‎ها مسائلی مانند مقاومت دارویی و بروز عوارض جانبی را مطرح می‎کند. لذا استفاده از داروهای گیاهی جدید با عوارض جانبی کمتر می‎تواند کمک شایانی در درمان عفونت‎های میکربی باشد. از آن‎جایی که هپاتیک‎ها و خزه‎ها از جمله گیاهان ابتدایی و دارای ساختمانی ساده و جالب توجه هستند و در شمال کشور نیز به وفور یافت ...

2013
Zoltán Takács Zsolt Csintalan Zoltán Tuba

Despite of the downward acclimation of photosynthesis in C. convoluta, increased net photosynthesis and carbon balance can be anticipated in response to elevated atmospheric C 0 2 level. C 0 2 exchange measurement seems to be more indicative when detecting heavy metal stress than fluorescence parameters. Among these, the relative fluorescence decrease ratio (RFd690) shows damage first, suggesti...

2006
S. A. Doonan

The size of the Convoluta roscoffensis population on a beach in Herm, Channel Islands is subject to wide seasonal variation, being very low in early summer and high in autumn and winter. Of the ecological factors measured, only light -expressed a s photosynthetically active radiation showed a correlation with population size. Low worm numbers, and also low numbers of algae and chlorophyll a con...

Journal: :The Journal of Cell Biology 1980
R Manaranche M Thieffry M Israel

A neurotoxin able to increase the spontaneous release of transmitter was found in the venom glands of the polychaete annelid Glycera convoluta. We studied the effect of this venom on the frog cutaneous pectoris muscle, where its application produced a prolonged (20-h), high-frequency discharge of miniature potentials. After 5 h of action, the initial store was renewed several times but no detec...

Journal: :The Journal of clinical investigation 1978
P B Woodhall C C Tisher C A Simonton R R Robinson

Previous studies in the mammalian proximal tubule have suggested that para-aminohippurate (PAH) secretion is approximately threefold greater in the straight segment, or pars recta, than in the convoluted segment, or pars convoluta. However, the possibility that the site of maximal PAH secretion might be related better to particular tubule segments as identified by cell type had not been explore...

Journal: :Natural product research 2013
Lei Wang Li-Ning Wang Yu Zhao Hong-Xiang Lou Ai-Xia Cheng

Rapid-growth Marchantia paleacea calluses were induced on MSK2 medium through surface sterilisation of the capsula. Ten known compounds including two steroids (1-2), six bibenzyls (3, 5-9), a flavonoid (10), and a terpenoid (4) were isolated from these calluses. The allelopathic effect of the six bibenzyls was assessed in Arabidopsis thaliana. Results revealed that bibenzyls could inhibit seedl...

Journal: :Acta Societatis Botanicorum Poloniae 2015

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