scholarly journals Regulation of Starch Biosynthesis in Plant Leaves: Activation and Inhibition of ADPglucose Pyrophosphorylase

1968 ◽  
Vol 43 (3) ◽  
pp. 417-427 ◽  
Author(s):  
Ghirdhar Gopal Sanwal ◽  
Elaine Greenberg ◽  
Jeanne Hardie ◽  
Erma C. Cameron ◽  
Jack Preiss
Keyword(s):  
Starch Biosynthesis ◽  
Plant Leaves ◽  
Adpglucose Pyrophosphorylase

scholarly journals Re-programming of gene expression in the CS8 rice line over-expressing ADPglucose pyrophosphorylase induces a suppressor of starch biosynthesis

2019 ◽  
Vol 97 (6) ◽  
pp. 1073-1088 ◽  
Author(s):  
Bilal Cakir ◽  
Li Tian ◽  
Naoko Crofts ◽  
Hong-Li Chou ◽  
Kaan Koper ◽  
...  
Keyword(s):  
Gene Expression ◽  
Starch Biosynthesis ◽  
Rice Line ◽  
Adpglucose Pyrophosphorylase

Starch synthesis in potato tubers transformed with the wheat genes for ADPglucose pyrophosphorylase

2002 ◽  
Vol 29 (8) ◽  
pp. 975 ◽  
Author(s):  
Kathryn A. Vardy ◽  
Michael J. Emes ◽  
Michael M. Burrell
Keyword(s):  
Solanum Tuberosum L ◽  
Starch Content ◽  
Starch Synthesis ◽  
Small Subunit ◽  
Starch Biosynthesis ◽  
Potato Tubers ◽  
Potato Plants ◽  
Adpglucose Pyrophosphorylase ◽  
Plastid Targeting

The aim of this work was to study the role of ADPglucose pyrophosphorylase (AGPase) in starch biosynthesis of non-photosynthetic organs. Agrobacterium tumefaciens was used to transform potato plants (Solanum tuberosum L. cv. Desire�) with the wheat AGPase genes (AGP-S and AGP-L, coding for the small and large subunits, respectively). Neither of these genes contains a recognisable plastid targeting sequence. Southern analysis and analysis of starch content identified four lines that contained both wheat sequences. Immunoblotting indicated that, in the tubers, three lines expressed the wheat small subunit (AGP-S), but AGP-L cross-reacting protein was not apparent. The fourth transgenic line had reduced AGPase activity. AGPase activity in the AGP-transgenic tubers ranged from 15 to 165% of that found in β-glucuronidase (GUS) control lines.

Ectodesmata as Revealed By Freeze-Etch Preparations of Plant Epidermal Cell Walls

1973 ◽  
Vol 31 ◽  
pp. 468-469
Author(s):  
N.C. Lyon ◽  
W. C. Mueller
Keyword(s):  
Electron Microscopy ◽  
Acetic Acid ◽  
Nitric Acid ◽  
Oxalic Acid ◽  
Light Microscopy ◽  
Epidermal Cell ◽  
Cell Walls ◽  
Plant Viruses ◽  
Plant Leaves ◽  
Thin Sections

Schumacher and Halbsguth first demonstrated ectodesmata as pores or channels in the epidermal cell walls in haustoria of Cuscuta odorata L. by light microscopy in tissues fixed in a sublimate fixative (30% ethyl alcohol, 30 ml:glacial acetic acid, 10 ml: 65% nitric acid, 1 ml: 40% formaldehyde, 5 ml: oxalic acid, 2 g: mecuric chloride to saturation 2-3 g). Other workers have published electron micrographs of structures transversing the outer epidermal cell in thin sections of plant leaves that have been interpreted as ectodesmata. Such structures are evident following treatment with Hg++ or Ag+ salts and are only rarely observed by electron microscopy. If ectodesmata exist without such treatment, and are not artefacts, they would afford natural pathways of entry for applied foliar solutions and plant viruses.

Antipyretic activity of the root extracts of Desmodium Gangeticum

2018 ◽  
Vol 8 (2) ◽  
pp. 20-23
Author(s):  
Raja Sheker K ◽  
Naveen B ◽  
Anil kumar A ◽  
Abhilash G
Keyword(s):  
Gastric Ulcers ◽  
Plant Leaves ◽  
Medical Systems ◽  
Human Race ◽  
Standard Drug ◽  
Root Extracts ◽  
Antipyretic Activity ◽  
Scientific Investigations ◽  
And Control ◽  
Effective Drugs

Fevers are considered as the most important parameters to evaluate and diagnose most of the disease conditions like inflammations, wounds and other infections. There are effective drugs that treat and control the fevers out of which NSAID's are most important ones. They cause notable side effects like gastric ulcers, gastric mucosal perforations etc. which make the use of those drugs limited. Herbs are used to treat various diseases, starting from the evolution of the human race. During this, herbs had been introduced to many types of tests and scientific investigations to prove the activities that herbs possess. The diseases that the herbs are used for are notable in the medical systems like Ayurveda and other systems. The need for the validation of the activities of the herbs and medicinal plants is utmost important these days. The extracts of the plant leaves of Desmodium gangeticum were extracted with ethanol and then investigated for the antipyretic activity in yeast induced pyretic method. The extract was tested in two doses 200 and 400mg/kg. This was found significant when compared to the standard drug.

Development of simple models for agrichemical uptake into plant foliage

2003 ◽  
Vol 56 ◽  
pp. 61-65
Author(s):  
J.A. Zabkiewicz ◽  
W.A. Forster
Keyword(s):  
Vicia Faba ◽  
Initial Dose ◽  
Plant Leaves ◽  
Linear Relationships ◽  
Plant Foliage ◽  
Mass Uptake ◽  
Uptake Mechanisms ◽  
Simple Models

Pesticide uptake into plants is typically reported as percentage uptake of the amount applied but in studies of the mechanism of cuticular penetration this approach has not been helpful It can be shown that relating percentage uptake to initial dose of bentazone applied to Vicia faba foliage cannot provide pertinent relationships that can be used to explain cuticular uptake mechanisms However applying the principles of Ficks Law and using mass or molar quantities does provide excellent linear relationships between mass uptake and initial dose applied Universal equations can be derived that relate dose uptake to initial dose applied onto plant leaves

Dynamic metabolic analysis of tobacco starch biosynthesis at different altitudes

2013 ◽  
Vol 38 (1) ◽  
pp. 22-26
Author(s):  
Yong-xia YANG ◽  
Bing-jin SHI ◽  
Xiao-long WANG ◽  
Qi FENG ◽  
Song-tao ZHANG ◽  
...  
Keyword(s):  
Starch Biosynthesis ◽  
Metabolic Analysis ◽  
Different Altitudes
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