The effect of cytokinins and other plant hormones on the growth of cotyledonary axilars of flax (Lin - دانلود رایگان

تاثیر سیتوکینین ها و دیگر هورمون های گیاهی بر رشد محوری لپه ای درخت کتان(لینیوم یوزیتاتیسیمیوم)، آفتابگردان(هلیانتیوس آنیوس) و لوبیا(پیسیوم ستیوم)

چکیده:
جوانه های درخت کتان بالای لپه ها جدا می شوند. پس از اینکه یک لپه جدا شد، رشد غنچه لپه باقیمانده در 90 درصد گیاهان قوی تر می شود. با این حال، استفاده از بنزیل آدنین سیتوکینین (BA) برای غنچه لپه حذف شده باعث ایجاد رشد معکوس وابسته بهم می شود. در مقابل، غنچه ها که دارای لپه های روینده بر روی خاک و مشابه درخت کتان هستند، پس از جدا شدن و حذف یک لپه، رشد محوری لپه حذف شده در 59 درصد گیاهان شدت بیشتری دارد. استفاده از BA برای لپه باقیمانده آفتابگردان منجر به رشد بیشتر محوری این لپه می شود. هنگامی که هر دو لپه بر روی جوانه قرار می گیرند، BA بکار گرفته شده برای یکی از این لپه های جدا شده گیاهان کتان منجر به تحریک بسیار معنادار رشد محوری این لپه می شود. با این حال، در آفتابگردان تاثیر BA معنادار نبود. پس از جداسازی ساقه جوانه های لوبیا، هر دو لپه باقی می مانند و جوانه های رویده شده فرعی رشد می کنند اما پس از دوره زمانی خاص یکی از آنها(نوع غالب) از لحاظ رشد نسبت به نوع دیگر(نوع بازدارنده شده) رشد بیشتری پیدا کرد. مطالعه حاضر بر این موضوع تمرکز کرده است که آیا استفاده از هورمون گیاهی بر جوانه بازدارنده شده می تواند باعث رشد معکوس وابسته به هم شود(یعنی جوانه بازدارنده شده در نوع غالب تغییر کند). استفاده از 12/0 درصد BA می تواند باعث چنین رشد معکوسی در تمام گیاهان شود و این درصورتی است که تفاوت اولیه در طول بین جوانه های رویده شده فرعی بازدارنده شده و غالب 24-12 میلی متر می باشد. تراکم یا غلظت 12-0 تا 5/0-0 درصدی ژیبرلین باعث رشد معکوس در 75-13 درصد گیاهان می شود، اما درصورتی این تاثیر ایجاد

The

effect

of

cytokinins

and

other

plant

hormones

on

the

growth

of

cotyledonary

axilars

of

flax

(Lin

مقاله

پاورپوینت

فایل فلش

کارآموزی

گزارش تخصصی

اقدام پژوهی

درس پژوهی

جزوه

خلاصه

Plant Integrity in the Sphere of Vegetative Organs ...

01/01/1991 · COVID-19 campus closures: see options for getting or retaining Remote Access to subscribed content

Chapter 5 Cellular totipotency - ScienceDirect

01/01/1996 · Chapter 5 Cellular Totipotency 5.1. INTRODUCTION Unlike animals, where differentiation is generally irreversible, in plants even highly mature and differentiated cells retain the ability to regress to a meristematic state as long as they have an intact membrane system and a viable nucleus.

Plants | Free Full-Text | In Vitro Propagation ...

Bacopa monnieri has been used as a reputed drug in the Indian traditional ayurvedic system for centuries. This medicinal herb with important phytopharmaceuticals has been popularly known as “Brahmi& . In recent years, B. monnieri has been extensively studied for its bioactive constituents, constituents responsible for memory enhancing effect, and also its diverse other useful ...

The Plant Hormone Cytokinin Confers Protection …

22/12/2016 · It has been extensively used as growth promoting hormone in plant tissue culture systems [1, 2] but the potential effects of kinetin on human health are still under research. Some studies reported an effect of kinetin on human disorders or diseases [5–8].

The Components of Plant Tissue Culture Media II: …

Minocha S.C. & Halperin W. 1974 Hormones and metabolites which control tracheid differentiation with or without concomitant effects on growth in cultured tuber tissue of Helianthus tuberosus L. Planta …

cytokinin | Definition, Functions, & Uses | Britannica

Cytokinin, any of a number of plant hormones that influence growth and the stimulation of cell division. Cytokinins are synthesized in the roots and are usually derived from adenine. They move upward in the xylem (woody tissue) and pass into the leaves and fruits, where they are required for normal growth and cell differentiation.

Effects of antibiotics on in vitro -cultured …

Here, we report the effects of kanamycin (Km), cefotaxime (Cef), carbenicillin (Crb), and ampicillin (Amp) on morphogenesis of Chinese cabbage (Brassica rapa L. ssp. pekinensis) cultured on Murashige and Skoog medium. The four antibiotics had little effect on callus induction, but influenced shoot and root differentiation to different degrees.

Plants | Special Issue : Plant Tissue Culture

The growth behavior of adventitious roots was recorded every 3 days for a period of 30 days. Maximum biomass biosynthesis (13.12 g/flask) was noticed in exponential phase on 27th day in the suspension containing 2.0 mg/L of GA 3. Other GA 3 concentrations

(PDF) Plant Growth Hormones - ResearchGate

In a ddition, plant hormones hav e an important role in plant growth not only germination such as cytokinins ( CKs) which influence cell division, the formation of shoot and helping in dela y ...

فایل های دسته بندی گوناگون

دانلود و خرید اینترنتی فایل برنامه نویسی. 30005911001000. info@fiload.ir. علوم انسانی

Cytokinin - Plant Hormones - Plant Growth Factors

Since their discovery in 1955 much work has been carried out on cytokinins. This has resulted in a good understanding of cytokinin structure and how it is able to act as a plant hormone. This section of plant biology advice gives information on cytokinin form, biosynthesis and function.

Plants | Free Full-Text | In Vitro Propagation ...

Bacopa monnieri has been used as a reputed drug in the Indian traditional ayurvedic system for centuries. This medicinal herb with important phytopharmaceuticals has been popularly known as “Brahmi& . In recent years, B. monnieri has been extensively studied for its bioactive constituents, constituents responsible for memory enhancing effect, and also its diverse other useful ...

Plant Integrity in the Sphere of Vegetative Organs ...

01/01/1991 · COVID-19 campus closures: see options for getting or retaining Remote Access to subscribed content

Cytokinin - an overview | ScienceDirect Topics

Cytokinins are one of the major plant hormones that regulate numerous aspects of growth and development. Although the role of cytokinins in various developmental processes has been well characterized, our knowledge on their effect on plant stress tolerance is still fragmentary.

Cytokinin - an overview | ScienceDirect Topics

Cytokinins are one of the major plant hormones that regulate numerous aspects of growth and development. Although the role of cytokinins in various developmental processes has been well characterized, our knowledge on their effect on plant stress tolerance is still fragmentary.

Cytokinins - Plant Growth Regulators | Sigma-Aldrich

Cytokinins in the intact plant are the phytohormones that work from the bottom up. Made in the roots (also seeds and fruits), cytokinins travel up the xylem and promote lateral growth. Since auxins travel down from the growing tip and act to suppress lateral growth, these two types of hormones strike a balance.

فایل های دسته بندی گوناگون

دانلود و خرید اینترنتی فایل برنامه نویسی. 30005911001000. info@fiload.ir. علوم انسانی

Effects of antibiotics on in vitro -cultured …

Here, we report the effects of kanamycin (Km), cefotaxime (Cef), carbenicillin (Crb), and ampicillin (Amp) on morphogenesis of Chinese cabbage (Brassica rapa L. ssp. pekinensis) cultured on Murashige and Skoog medium. The four antibiotics had little effect on callus induction, but influenced shoot and root differentiation to different degrees.

Cytokinins - Plant Growth Regulators | Sigma-Aldrich

Cytokinins in the intact plant are the phytohormones that work from the bottom up. Made in the roots (also seeds and fruits), cytokinins travel up the xylem and promote lateral growth. Since auxins travel down from the growing tip and act to suppress lateral growth, these two types of hormones strike a balance.

Effects of antibiotics on in vitro -cultured …

Here, we report the effects of kanamycin (Km), cefotaxime (Cef), carbenicillin (Crb), and ampicillin (Amp) on morphogenesis of Chinese cabbage (Brassica rapa L. ssp. pekinensis) cultured on Murashige and Skoog medium. The four antibiotics had little effect on callus induction, but influenced shoot and root differentiation to different degrees.

Issue | Plant, Soil and Environment

The effect of cytokinins and other plant hormones on the growth of cotyledonary axilars of flax (Linum usitatissimum), sunflower (Helianthus annuus) and pea (Pisum sativum) Š. Klíčová, J. Šebánek, T. Vlašic. Plant Soil Environ., 50 (2004): 182-187 abstract download PDF.

cytokinin | Definition, Functions, & Uses | Britannica

Cytokinin, any of a number of plant hormones that influence growth and the stimulation of cell division. Cytokinins are synthesized in the roots and are usually derived from adenine. They move upward in the xylem (woody tissue) and pass into the leaves and fruits, where they are required for normal growth and cell differentiation.

Plant Integrity in the Sphere of Vegetative Organs ...

01/01/1991 · COVID-19 campus closures: see options for getting or retaining Remote Access to subscribed content

The effect of cytokinins and other plant hormones …

The effect of cytokinins and other plant hormones on the growth of cotyledonary axilars of flax (Linum usitatissimum), sunflower (Helianthus annuus) and pea (Pisum sativum) Article   in   Plant...

The Interaction Between Growth Promoters in …

The Interaction Between Growth Promoters in Apical ... ... interaction