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Showing 13 to 24 of 727 entries
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Involvement of exogenous polyamines enhances regeneration and Agrobacterium-mediated genetic transformation in half-seeds of soybean.

3 Biotech

Arun M, Chinnathambi A, Subramanyam K, Karthik S, Sivanandhan G, Theboral J, Alharbi SA, Kim CK, Ganapathi A.
PMID: 28330220
3 Biotech. 2016 Dec;6(2):148. doi: 10.1007/s13205-016-0448-0. Epub 2016 Jun 28.

The present work demonstrates the participation of polyamines (PAs) to improve direct regeneration and Agrobacterium-mediated transformation in soybean half-seeds. The inclusion of PAs to culture medium along with optimal plant growth regulators (PGRs) enhanced shoot induction [98.3 %; 4.44...

Polyamine levels during the onset of "CAM" inOpuntia F. indica (Miller).

Amino acids

Deidda P, Tekle Z, Nieddu G, Pintus G, Pinna GG, Sisini A.
PMID: 24186050
Amino Acids. 1994 Jun;7(2):203-9. doi: 10.1007/BF00814160.

Polyamines have been related to the "Crassulacean Acid Metabolism" (CAM) in higher plants. Such relationship was however observed in plants where CAM activity is inducible by external factors. Results presented here indicate that, inOpuntia F. indica, cladodes where onset...

Efficient plant regeneration from long-term callus cultures of rice by spermidine.

Plant cell reports

Bajaj S, Rajam MV.
PMID: 24186629
Plant Cell Rep. 1995 Aug;14(11):717-20. doi: 10.1007/BF00232654.

A significant reduction in regeneration potential with increasing age (upto 12months) in rice (Oryza sativa L. cv.TN-1) embryogenic callus cultures was observed. Spermidine, while having an inhibitory effect on plant regeneration in fresh callus cultures, promoted morphogenesis in long-term...

Identification of Wild Yeast Strains and Analysis of Their β-Glucan and Glutathione Levels for Use in Makgeolli Brewing.

Mycobiology

Kang SH, Kim HR, Kim JH, Ahn BH, Kim TW, Lee JE.
PMID: 25606008
Mycobiology. 2014 Dec;42(4):361-7. doi: 10.5941/MYCO.2014.42.4.361. Epub 2014 Dec 31.

Makgeolli, also known as Takju, is a non-filtered traditional Korean alcoholic beverage that contains various floating matter, including yeast cells, which contributes to its high physiological functionality. In the present study, we assessed the levels of β-glucan and glutathione...

Spermidine, but not spermine, is essential for pigment pattern formation in zebrafish.

Biology open

Frohnhöfer HG, Geiger-Rudolph S, Pattky M, Meixner M, Huhn C, Maischein HM, Geisler R, Gehring I, Maderspacher F, Nüsslein-Volhard C, Irion U.
PMID: 27215328
Biol Open. 2016 Jun 15;5(6):736-44. doi: 10.1242/bio.018721.

Polyamines are small poly-cations essential for all cellular life. The main polyamines present in metazoans are putrescine, spermidine and spermine. Their exact functions are still largely unclear; however, they are involved in a wide variety of processes affecting cell...

Proteomic Analysis Reveals the Positive Effect of Exogenous Spermidine in Tomato Seedlings' Response to High-Temperature Stress.

Frontiers in plant science

Sang Q, Shan X, An Y, Shu S, Sun J, Guo S.
PMID: 28220137
Front Plant Sci. 2017 Feb 06;8:120. doi: 10.3389/fpls.2017.00120. eCollection 2017.

Polyamines are phytohormones that regulate plant growth and development as well as the response to environmental stresses. To evaluate their functions in high-temperature stress responses, the effects of exogenous spermidine (Spd) were determined in tomato leaves using two-dimensional electrophoresis...

Influence of Polyamines on Growth of Hairy Root Cultures of Witloof Chicory (Cichorium intybus L. cv. Lucknow Local) and Formation of Coumarins.

Journal of plant growth regulation

Bais HP, George J, Ravishankar GA.
PMID: 10467017
J Plant Growth Regul. 1999 Aug;18(1):33-37. doi: 10.1007/pl00007043.

The effect of polyamines (putrescine, spermidine, and spermine) was examined for growth and production of two coumarins, esculetin and esculin, in the hairy roots of chicory (Cichorium intybus L. cv. Lucknow local). Of the polyamines administered, 1.5 mm putrescine...

Polyamine distribution patterns within the families Aeromonadaceae, Vibrionaceae, Pasteurellaceae, and Halomonadaceae, and related genera of the gamma subclass of the Proteobacteria.

The Journal of general and applied microbiology

Hamana K.
PMID: 12501353
J Gen Appl Microbiol. 1997 Feb;43(1):49-59. doi: 10.2323/jgam.43.49.

Polyamines of the four families and the five related genera within the gamma subclass of the class Proteobacteria were analyzed by HPLC with the objective of developing a chemotaxonomic system. The production of putrescine, diaminopropane, cadaverine, and agmatine are...

Polyamine Accumulation and Near Loss of Morphogenesis in Long-Term Callus Cultures of Rice (Restoration of Plant Regeneration by Manipulation of Cellular Polyamine Levels).

Plant physiology

Bajaj S, Rajam MV.
PMID: 12226449
Plant Physiol. 1996 Nov;112(3):1343-1348. doi: 10.1104/pp.112.3.1343.

We have shown (S. Bajaj and M.V. Rajam [1995] Plant Cell Rep 14: 717-720) that a significant reduction in morphogenetic potential occurs in callus cultures of rice (Oryza sativa L. cv TN-1) (up to 1 year old), and that...

Differential responses of Brassica napus and Petunia hybrida to leaf protoplast isolation stress.

Physiologia plantarum

Watanabe M, Suzuki K, Kawasaki H, Watanabe Y.
PMID: 11975740
Physiol Plant. 2002 Apr;114(4):645-651. doi: 10.1034/j.1399-3054.2002.1140419.x.

Changes in the response to abiotic stress during the isolation of leaf protoplasts were compared between a recalcitrant species of Brassica napus and regenerating species of Petunia hybrida. Initially, levels of soluble free putrescine (put), spermidine (spd) and spermine...

Electrospray ionization mass spectrometry of synthetic oligonucleotides using 2-propanol and spermidine.

Rapid communications in mass spectrometry : RCM

De Bellis G, Salani G, Battaglia C, Pietta P, Rosti E, Mauri P.
PMID: 10669883
Rapid Commun Mass Spectrom. 2000;14(4):243-9. doi: 10.1002/(SICI)1097-0231(20000229)14:4<243::AID-RCM870>3.0.CO;2-F.

Oligonucleotides have become widely used tools in molecular biology and molecular diagnostics. Their parallel synthesis in large numbers and the increasing interest in microarray technology has raised the requirement for fast and informative analytical tools for their quality control....

Pathological changes in platelet histamine oxidases in atopic eczema.

Mediators of inflammation

Kiehl R, Ionescu G.
PMID: 18475554
Mediators Inflamm. 1993;2(6):403-6. doi: 10.1155/S0962935193000560.

Increased plasma histamine levels were associated with significantly lowered diamine and type B monoamine oxidase activities in platelet-rich plasma of atopic eczema (AE) patients. The diamine oxidase has almost normal cofactor levels (pyridoxal phosphate and Cu(2+)) but the cofactor...

Showing 13 to 24 of 727 entries