نتایج جستجو برای: naphthaleneacetic acid
تعداد نتایج: 747445 فیلتر نتایج به سال:
Plant growth depends on the integration of environmental cues and phytohormone-signaling pathways. During seedling emergence, elongation of the embryonic stem (hypocotyl) serves as a readout for light and hormone-dependent responses. We screened 10,000 chemicals provided exogenously to light-grown seedlings and identified 100 compounds that promote hypocotyl elongation. Notably, one subset of t...
The comparative analysis of plant hormones was undertaken on a 1-naphthaleneacetic acid tolerant mutant and normal tobacco (Nicotiana tabacum cv Xanthi) plantlets. The mutant plantlet was scrubby and impaired in its root morphogenesis. Degeneration of the root meristem was studied on tissue sections; it appeared very fast (as early as the 3rd or 4th day after sowing), after which the root was f...
Auxin/IAA (Indole-3-acetic acid) plays critical roles in many aspects of plant growth and development. Gretchen Hagen 3.1 (GH3.1) enzyme from grapevine (Vitis vinifera) catalyzes the ATP-dependent conjugation of aspartate to IAA suggesting a significant way to modulate levels of cellular auxins/IAA. It is reported that VvGH3.1 prefers IAA as the substrate than 1-naphthaleneacetic acid (NAA) and...
A promising micropropagation protocol has been systematically established and demonstrated for the enhanced production of carotenoids, tocopherol and fatty acids in shoot tissues of Sedum dasyphyllum. Shoot tip explants were grown on Murashige and Skoog (MS) medium. Different concentrations of N6-benzyladenine (BA) or thidiazuron (TDZ) alone or in combination with α-naphthaleneacetic acid (NAA)...
Abstract The study was conducted to investigate the effect of CPPU(2-Chloro-4-pyridyl-phenylurea) and NAA (Naphthaleneacetic acid) on pigments, total phenol, flavonoid mineral (K+) content in wax apple fruit. CPPU concentrations were 10, 15 20ppm (Expt.1) 6, 12, 18ppm applied coming after swabbing technique (Expt.2). In Expt.1, lowest fruit weight, size chlorophyll observed control treatment. H...
Abstract Callus formation and somatic embryogenesis in potato varieties are effective ways to obtain an entire plant from a single cell. The implementation of is widely used improving materials creating new biotechnological varieties. In our research, the optimum level 1-naphthaleneacetic acid (NAA) 6-benzyl aminopurine (BAP) was determined callus tissue local Sarnav variety, Desiree variety ta...
Hairy root cultures of Mitragyna speciosa were established by infection of Agrobacterium rhizogenes ATCC 15834 and maintained in McCown woody plant medium (WPM) supplemented with 0.5 mg/1 naphthaleneacetic acid. The hairy roots were identified for the rooting genes loci of rolA and rolB by polymerase chain reaction. For studying the secondary metabolite production, the n-hexane extract of the h...
Mesophyll cells isolated mechanically from leaves of Zinnia elegans L. cv Canary bird differentiate into tracheary elements (TE) semisynchronously and at high frequency. Using this system, three cDNA clones, TED2 to TED4, whose corresponding mRNAs were expressed in a close association with tracheary element differentiation, were isolated by differential screening of a lambda gt11 cDNA library. ...
Early embryogenesis starting from a single cell zygote goes through rapid cell division and morphogenesis, and is morphologically characterized by pre-globular, globular, heart, torpedo and cotyledon stages. This progressive development is under the tight regulation of a complex molecular network. Harvesting sufficient early embryos at a similar stage of development is essential for investigati...
An efficient protocol was developed for micro-propagation of Indian papaya (Carica papaya L.) var. Co7. Shoot bud induction occurred on culturing epicotyl segments in MS (Murashige and Skoog, 1962) medium, followed by transfer onto shoot multiplication, elongation and rooting media. Adventitious buds were induced on MS medium supplemented with varying concentration of thidiazuron (TDZ: 0.5-10 μ...
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