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Showing 13 to 24 of 1088 entries
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Polyamines Confer Salt Tolerance in Mung Bean (Vigna radiata L.) by Reducing Sodium Uptake, Improving Nutrient Homeostasis, Antioxidant Defense, and Methylglyoxal Detoxification Systems.

Frontiers in plant science

Nahar K, Hasanuzzaman M, Rahman A, Alam MM, Mahmud JA, Suzuki T, Fujita M.
PMID: 27516763
Front Plant Sci. 2016 Jul 28;7:1104. doi: 10.3389/fpls.2016.01104. eCollection 2016.

The physiological roles of PAs (putrescine, spermidine, and spermine) were investigated for their ability to confer salt tolerance (200 mM NaCl, 48 h) in mung bean seedlings (Vigna radiata L. cv. BARI Mung-2). Salt stress resulted in Na toxicity,...

Simultaneous Silencing of Two Arginine Decarboxylase Genes Alters Development in Arabidopsis.

Frontiers in plant science

Sánchez-Rangel D, Chávez-Martínez AI, Rodríguez-Hernández AA, Maruri-López I, Urano K, Shinozaki K, Jiménez-Bremont JF.
PMID: 27014322
Front Plant Sci. 2016 Mar 14;7:300. doi: 10.3389/fpls.2016.00300. eCollection 2016.

Polyamines (PAs) are small aliphatic polycations that are found ubiquitously in all organisms. In plants, PAs are involved in diverse biological processes such as growth, development, and stress responses. In Arabidopsis thaliana, the arginine decarboxylase enzymes (ADC1 and 2)...

Iron(II) Complexes with Scorpiand-Like Macrocyclic Polyamines: Kinetico-Mechanistic Aspects of Complex Formation and Oxidative Dehydrogenation of Coordinated Amines.

Inorganic chemistry

Clares MP, Acosta-Rueda L, Castillo CE, Blasco S, Jiménez HR, García-España E, Basallote MG.
PMID: 28338318
Inorg Chem. 2017 Apr 17;56(8):4400-4412. doi: 10.1021/acs.inorgchem.6b03070. Epub 2017 Mar 24.

The Fe(II) coordination chemistry of a pyridinophane tren-derived scorpiand type ligand containing a pyridine ring in the pendant arm is explored by potentiometry, X-ray, NMR, and kinetics methods. Equilibrium studies in water show the formation of a stable [FeL]

Fruit metabolite networks in engineered and non-engineered tomato genotypes reveal fluidity in a hormone and agroecosystem specific manner.

Metabolomics : Official journal of the Metabolomic Society

Fatima T, Sobolev AP, Teasdale JR, Kramer M, Bunce J, Handa AK, Mattoo AK.
PMID: 27330523
Metabolomics. 2016;12:103. doi: 10.1007/s11306-016-1037-2. Epub 2016 May 11.

INTRODUCTION: Metabolomics provides a view of endogenous metabolic patterns not only during plant growth, development and senescence but also in response to genetic events, environment and disease. The effects of the field environment on plant hormone-specific metabolite profiles are...

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...

Evidence for stereoelectronic effects in the N-C-N group of 8,10,12-triaza-1-azoniatetracyclo[8.3.1.1(8,12).0(2,7)]pentadecane 4-nitrophenolate 4-nitrophenol monosolvate from the protonation of aminal (2R,7R)-1,8,10,12-tetraazatetracyclo[8.3.1.1(8,12).0(2,7)]pentadecane: X-ray and natural bond orbital analysis.

Acta crystallographica. Section C, Structural chemistry

Rivera A, Uribe JM, Ríos-Motta J, Osorio HJ, Bolte M.
PMID: 25836286
Acta Crystallogr C Struct Chem. 2015 Apr;71:284-8. doi: 10.1107/S2053229615004829. Epub 2015 Mar 14.

The title molecular salt, C11H21N4(+)·C6H4NO3(-)·C6H5NO3, (II), crystallizes with two independent three-component aggregates in the asymmetric unit. In the cations, the cyclohexane rings fused to the cage azaadamantane systems both adopt a chair conformation. In the crystal structure, the aggregates...

Microcallus formation from maize protoplasts prepared from embryogenic callus.

Planta

Imbrie-Milligan CW, Hodges TK.
PMID: 24232151
Planta. 1986 Sep;168(3):395-401. doi: 10.1007/BF00392367.

Conditions have been developed that induce maize (Zea mays L.) protoplasts to re-synthesize cell walls and to initiate cell divisions. Two types of embryogenic maize callus were used as a source of protoplasts: a heterogeneous callus (Type I) derived...

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...

Examination of the leaf proteome during flooding stress and the induction of programmed cell death in maize.

Proteome science

Chen Y, Chen X, Wang H, Bao Y, Zhang W.
PMID: 25028572
Proteome Sci. 2014 Jun 11;12:33. doi: 10.1186/1477-5956-12-33. eCollection 2014.

BACKGROUND: Maize is a major economic crop worldwide, with substantial crop loss attributed to flooding. During a stress response, programmed cell death (PCD) can be an effective way for plants better adapt. To identify flooding stress related PCD proteins...

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...

Chemoselective silicification of synthetic peptides and polyamines.

Beilstein journal of nanotechnology

Abacilar M, Daus F, Geyer A.
PMID: 25671155
Beilstein J Nanotechnol. 2015 Jan 08;6:103-10. doi: 10.3762/bjnano.6.10. eCollection 2015.

Biosilicification sets the standard for the localized in vitro precipitation of silica at low orthosilicate concentrations in aqueous environment under ambient conditions. Numerous parameters must be controlled for the development of new technologies in designing inventive nanosilica structures, which...

Showing 13 to 24 of 1088 entries