نتایج جستجو برای: leaf tissue

تعداد نتایج: 995872  

2013
Durdi Qujeq Mohsen Tatar Farideh Feizi Hadi Parsian Alieh Sohan Faraji Sohrab Halalkhor

Urtica dioica has been known as a plant that decreases blood glucose. Despite the importance of this plant in herbal medicine, relatively little research has been down on effects of this plant on islets yet. The objective of the current study was to evaluate the effect of dried Urtica dioica leaf alcoholic and aqueous extracts on the number and the diameter of the islets and histological parame...

Journal: :The British journal of radiology 2011
J A Tanyi C M Kato Y Chen Z Chen M Fuss

OBJECTIVES The impact of two multileaf collimator (MLC) systems for linear accelerator-based intracranial stereotactic radiosurgery (SRS) was assessed. METHODS 68 lesions formed the basis of this study. 2.5 mm leaf width plans served as reference. Comparative plans, with identical planning parameters, were based on a 5 mm leaf width MLC system. Two collimation strategies, with collimation fix...

2005
Ahmed Bahieldin Hala F. Eissa Hesham T. Mahfouz William E. Dyer Magdy A. Madkour Rongda Qu

The GUS gene of E. coli, encoding b-glucuronidase, has been widely used as a reporter gene in plant transformation. However, b-glucuronidase activity in transgenic wheat leaf or root tissue is rarely observed or reported. To address this question, we investigated three wheat lines transformed with the GUS reporter gene. We found all three lines expressed GUS mRNA as well as b-glucuronidase prot...

Journal: :The Journal of general virology 1970
D G Walkey M J Webb

Tubular inclusion bodies containing single rows of virus particles were observed by electron microscopy in hosts infected with three NEPO viruses. When Nicotiana rustica L. plants were inoculated with cherry leaf roll virus tubules were found in axillary buds 4 days later and reached a maximum concentration after 2 to 3 weeks. Tubules were also found in root tips, pollen, ovules and mature seed...

Journal: :Journal of experimental botany 2010
Chiu-Yueh Hung Ying-Hsuan Sun Jianjun Chen Diane E Darlington Alfred L Williams Kent O Burkey Jiahua Xie

Variegated plants provide a valuable tool for studying chloroplast biogenesis by allowing direct comparison between green and white/yellow sectors within the same leaf. While variegated plants are abundant in nature, the mechanism of leaf variegation remains largely unknown. Current studies are limited to a few mutants in model plant species, and are complicated by the potential for cross-conta...

2017
Anupma Sharma Ching Man Wai Ray Ming Qingyi Yu

Circadian clock provides fitness advantage by coordinating internal metabolic and physiological processes to external cyclic environments. Core clock components exhibit daily rhythmic changes in gene expression, and the majority of them are transcription factors (TFs) and transcription coregulators (TCs). We annotated 1,398 TFs from 67 TF families and 80 TCs from 20 TC families in pineapple, an...

Journal: :Plant physiology 1974
D I Paynter J W Anderson

ATP sulfurylase activity was partially purified from the swollen hypocotyl of beetroot (Beta vulgaris); activity was measured by sulfate-dependent PPi-ATP exchange. The ATP sulfurylase activity was separated from pyrophosphatase and ATPase activities which interfere with the assay of ATP sulfurylase activity. The ATP sulfurylase activity from hypocotyl tissue was invariably resolved into two ap...

2013
Smeera Thomas J. Grace Nirmala R. T. Narendhirakannan

Aims: The present study was undertaken to explore in vivo antioxidant potential of ethanol extracts of Nyctanthes arbor-tristis leaf and stem in adjuvant induced arthritic rats. Methodology: Arthritis induced rats were administered with extract of Nyctanthes arbortristis leaf and stem. (150 mg/kg body Weight/rat/day for 30 days. Results: A significant decrease in paw edema was observed followin...

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