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Tomáš Filipi et al.
Phytochemistry, 74, 40-48 (2011-11-15)
The maize β-D-glucosidase Zm-p60.1 releases active cytokinins from their storage/transport forms, and its over-expression in tobacco disrupts zeatin metabolism. The role of the active-site microenvironment in fine-tuning Zm-p60.1 substrate specificity has been explored, particularly in the W373K mutant, using site-directed
Isolation of a cytokinin gene, ZOG1, encoding zeatin O-glucosyltransferase from Phaseolus lunatus
Martin RC, et al.
Proceedings of the National Academy of Sciences of the USA, 96(1), 284-289 (1999)
Ling Guan et al.
Horticulture research, 7, 143-143 (2020-09-15)
Adventitious root (AR) formation is critical for the efficient propagation of elite horticultural and forestry crops. Despite decades of research, the cellular processes and molecular mechanisms underlying AR induction in woody plants remain obscure. We examined the details of AR
Toru Kudo et al.
Plant physiology, 160(1), 319-331 (2012-07-20)
cis-Zeatin (cZ) is generally regarded as a cytokinin with little or no activity, compared with the highly active trans-zeatin (tZ). Although recent studies suggested possible roles for cZ, its physiological significance remains unclear. In our studies with rice (Oryza sativa)
Ji Xu et al.
Applied and environmental microbiology, 78(22), 8056-8061 (2012-09-11)
Cytokinin is required for the initiation of leguminous nitrogen fixation nodules elicited by rhizobia and the delay of the leaf senescence induced by drought stress. A few free-living rhizobia have been found to produce cytokinin. However, the effects of engineered
Marek Zatloukal et al.
Bioorganic & medicinal chemistry, 16(20), 9268-9275 (2008-09-27)
The synthesis of a new group of 2-X-6-anilinopurines, including compounds with potential cytokinin-like activities, with various substitutions (X=H, halogen, amino, methylthio or nitro) on the phenyl ring is described. The prepared compounds have been characterized using standard physico-chemical methods, and
Silvana Casati et al.
Anticancer research, 31(10), 3401-3406 (2011-10-04)
We examined the effects of some cytokinins and cytokinin ribosides including a series of adenosine analogs differently substituted in the N(6) position, along with some hypoxanthine derivatives on the viability of normal and neoplastic human cells. Cytokinins such as trans-zeatin
Stoloniferous shoot protoplast, an efficient cell system in potato for somatic cell genetic manipulations
Sharma S, et al.
Sci. Hortic., 128(2), 84-91 (2011)
Yixiang Zhang et al.
BMC bioinformatics, 13 Suppl 15, S8-S8 (2012-10-17)
Multidimensional protein identification technology (MudPIT)-based shot-gun proteomics has been proven to be an effective platform for functional proteomics. In particular, the various sample preparation methods and bioinformatics tools can be integrated to improve the proteomics platform for applications like target
In vitro development of maize immature embryos: a tool for embryogenesis analysis
Matthys-Rochon E, et al.
Journal of Experimental Botany, 49(322), 839-845 (1998)
Riccardo Di Mambro et al.
Current biology : CB, 29(7), 1199-1205 (2019-03-19)
Plant developmental plasticity relies on the activities of meristems, regions where stem cells continuously produce new cells [1]. The lateral root cap (LRC) is the outermost tissue of the root meristem [1], and it is known to play an important
Nanae Ueda et al.
Plant physiology, 159(3), 1064-1072 (2012-05-17)
Upon Agrobacterium tumefaciens infection of a host plant, Tumor morphology root (Tmr) a bacterial adenosine phosphate-isopentenyltransferase (IPT), creates a metabolic bypass in the plastid for direct synthesis of trans-zeatin (tZ) with 1-hydroxy-2-methyl-2-(E)-butenyl 4-diphosphate as the prenyl donor. To understand the
A maize cytokinin gene encoding an O-glucosyltransferase specific to cis-zeatin
Martin RC, et al.
Proceedings of the National Academy of Sciences of the USA, 98(10), 5922-5926 (2001)
Adrian F Powell et al.
Plant physiology and biochemistry : PPB, 64, 33-40 (2013-01-29)
The aim of the present study was to determine if relationships between cytokinin (CK) profiles and corresponding enzymatic regulation were consistent with differences in kernel yield among commercial barley (Hordeum vulgare L.) cultivars, differing in parameters relating to productivity and
Wouter G van Doorn et al.
Journal of plant physiology, 170(2), 161-164 (2012-12-12)
Flower opening in Iris (Iris×hollandica) requires elongation of the pedicel and ovary. This moves the floral bud upwards, thereby allowing the tepals to move laterally. Flower opening is requires with elongation of the pedicel and ovary. In cv. Blue Magic
Nagavalli S Kiran et al.
Phytochemistry, 79, 67-77 (2012-05-04)
Cytokinin (CK) activity is regulated by the complex interplay of their metabolism, transport, stability and cellular/tissue localization. O-glucosides of zeatin-type CKs are postulated to be storage and/or transport forms. Active CK levels are determined in part by their differential distribution
Danuše Tarkowská et al.
Plant science : an international journal of experimental plant biology, 187, 105-112 (2012-03-13)
The putative role of cytokinins in processes leading to reproductive development of plants was investigated by analysing the shoot apical parts of a winter cultivar of oilseed rape (Brassica napus L. var. oleifera, cv. Górczański). The endogenous cytokinin levels were
Jonas Van Bockhaven et al.
The New phytologist, 206(2), 761-773 (2015-01-28)
Although numerous studies have shown the ability of silicon (Si) to mitigate a wide variety of abiotic and biotic stresses, relatively little is known about the underlying mechanism(s). Here, we have investigated the role of hormone defense pathways in Si-induced
Hyo Jung Kim et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(24), 10028-10033 (2013-05-31)
Cytokinins are plant hormones that play critical roles in growth and development. In Arabidopsis, the transcriptional response to cytokinin is regulated by action of type-B Arabidopsis response regulators (ARRs). Although central elements in the cytokinin signal transduction pathway have been
Fuyou Du et al.
Analytical and bioanalytical chemistry, 407(20), 6071-6079 (2015-05-31)
High-internal-phase-emulsion polymers (polyHIPEs) show great promise as solid-phase-extraction (SPE) materials because of the tremendous porosity and highly interconnected framework afforded by the high-internal-phase-emulsion (HIPE) technique. In this work, polyHIPE monolithic columns as novel SPE materials were prepared and applied to
Xinhua Zhang et al.
Journal of plant physiology, 169(9), 859-866 (2012-04-06)
The physiological and anatomical attributes of haustoria tissues in hemi-parasitic Santalum album L. seedlings, growing on the potential host, Kuhnia rosmarnifolia Vent., were investigated before and after attachment to the host. Quantization of endogenous levels of indole-3-acetic acid (IAA), zeatin
Dasharath P Oulkar et al.
Journal of AOAC International, 94(6), 1715-1721 (2012-02-11)
A selective and sensitive LC-MS/MS method is presented for simultaneous determination of 12 plant growth regulators, viz., indol-3-acetic acid, indol-3-butyric acid, kinetin, zeatin, 6-benzyl aminopurine, gibberellic acid, abscisic acid, chlormequat chloride, forchlorfenuron, paclobutrazole, daminozide, and 2,4-dichlorophenoxy acetic acid, in bud
Zhao-Fen Han et al.
Molecular plant-microbe interactions : MPMI, 26(11), 1359-1365 (2013-10-04)
Agrobacterium tumefaciens has been widely used in plant genetic transformation. Hormone-encoding genes residing in the T-DNA region have been removed, resulting in disarmed Agrobacterium strains that are used in various transformation experiments. Nopaline Agrobacterium strains, however, carry another hormone gene
Ina Horst et al.
Epigenetics & chromatin, 2(1), 17-17 (2009-12-04)
Acetylation of promoter nucleosomes is tightly correlated and mechanistically linked to gene activity. However, transcription is not necessary for promoter acetylation. It seems, therefore, that external and endogenous stimuli control histone acetylation and by this contribute to gene regulation. Photosynthetic
L B Vysotskaia et al.
Tsitologiia, 53(11), 884-890 (2012-02-16)
Immunohystochemical localization of cytokinins in cells of different root zones of wheat plants showed intensive immunostaining of zeatin in the apical root zone and its subsequent decline with the increase in the distance from the root tip. More intensive labeling
Lucie Szücová et al.
Bioorganic & medicinal chemistry, 17(5), 1938-1947 (2009-02-24)
In an attempt to improve specific biological functions of cytokinins routinely used in plant micropropagation, 33 6-benzylamino-9-tetrahydropyran-2-ylpurine (THPP) and 9-tetrahydrofuran-2-ylpurine (THFP) derivatives, with variously positioned hydroxy and methoxy functional groups on the benzyl ring, were prepared. The new derivatives were
Dang Thi Van et al.
GM crops, 1(5), 312-321 (2011-08-17)
The transformation of tomato (Solanum lycopersicum) through Agrobacterium tumefaciens is still far from being routine, particularly when it comes to commercial varieties. In the present paper, we present an efficient and simple protocol for leaf disc transformation of three Vietnamese
A V Babosha et al.
Aviakosmicheskaia i ekologicheskaia meditsina = Aerospace and environmental medicine, 44(3), 46-50 (2010-11-03)
Cytokine-regulated growth of germs' roots and hypocotyls was investigated on a background of modeled oxidative outbreak caused by the stress from exogenous hydrogen peroxide. Germs of rape (1-d old) and tomato (56-d old) in Petri dishes with solutions containing substances
Silvia Gajdosová et al.
Journal of experimental botany, 62(8), 2827-2840 (2011-02-02)
Cytokinins (CKs) are plant hormones affecting numerous developmental processes. Zeatin and its derivatives are the most important group of isoprenoid CKs. Zeatin occurs as two isomers: while trans-zeatin (transZ) was found to be a bioactive substance, cis-zeatin (cisZ) was reported
An improved 2-step liquid culture system for efficient in vitro shoot proliferation of sundew (Drosera rotundifolia L.)
Wawrosch C, et al.
Scientia Pharmaceutica, 77(4), 827-836 (2009)
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