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

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.

Poster Abstracts - PDF Free Download

Effects of Pretreatments and Hormone Regime on Green Plant Production in Barley Isolated Microspore Culture Patricio Esteves. Universite Laval, Departement de Phytologie Pavillon Paul-Comtois 2425, rue de l’Agriculture Bureau 3223 Universite Laval Quebec (Quebec) G1V 0A6, Canada.

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.

The Interaction Between Growth Promoters in …

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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.

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.

Efficacy of organic amendments used in …

27/01/2020 · The level of response in plant growth parameters cannot be explained by the amount of mineral nutrients in commercial preparations (Crouch and Van Staden, 1993) and it is likely due, in part, to plant growth regulators such as cytokinins, auxins, abscisic acid, gibberellins, brassinosteroids and similar compounds; bioactive compounds such as phloroglucinol and eckol; other low molecular …

Poster Abstracts - PDF Free Download

Effects of Pretreatments and Hormone Regime on Green Plant Production in Barley Isolated Microspore Culture Patricio Esteves. Universite Laval, Departement de Phytologie Pavillon Paul-Comtois 2425, rue de l’Agriculture Bureau 3223 Universite Laval Quebec (Quebec) G1V 0A6, Canada.

Plant Soil Environ., 50 (2004) | Plant, Soil and …

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. No. 3.

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 …

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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.

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.

Growth - Suplementação - Preço Direto da Fábrica

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Poster Abstracts - PDF Free Download

Effects of Pretreatments and Hormone Regime on Green Plant Production in Barley Isolated Microspore Culture Patricio Esteves. Universite Laval, Departement de Phytologie Pavillon Paul-Comtois 2425, rue de l’Agriculture Bureau 3223 Universite Laval Quebec (Quebec) G1V 0A6, Canada.

(PDF) Plant Growth Regulators II: Cytokinins, their ...

Plant Growth Regulators II: Cytokinins, ... At the same time the effect of a hormone on any developmental process depends on the species. ... effective than other cytokinins for shoot proliferation.

Over‐expression of Brassica napus …

Other changes included increased phytic acid levels and phytohormone organization patterns. These results suggest the importance of PtdIns‐PLC2 as an elicitor of a battery of events that systematically control hormone regulation, and plant growth and development in what may be a …

Efficacy of organic amendments used in …

27/01/2020 · The level of response in plant growth parameters cannot be explained by the amount of mineral nutrients in commercial preparations (Crouch and Van Staden, 1993) and it is likely due, in part, to plant growth regulators such as cytokinins, auxins, abscisic acid, gibberellins, brassinosteroids and similar compounds; bioactive compounds such as phloroglucinol and eckol; other low molecular …

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 ...

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.

Plant Growth Regulators III Gibberellins Ethylene …

The Plant Hormone Ethylene, CRC Press, Boca Raton, Florida. SISLER E.C., DUPILLE E. & SEREK m. 1996 effect of 1-methylcyclopropene and methylcyclopropane on ethylene binding and ethylene action on cut carnations. Plant Growth Regul. 18, 79-86. SKOOG F. (ed.) 1980 Plant Growth Substances. Proc. 10 th Int. Conf. Plant

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 …

Cytokinins - Plant Cell Biology For Masters- by G. R ...

Cytokinins are a major class of plant hormones that are involved in various aspects of plant development, ranging from organ formation and apical dominance to leaf senescence. Cytokinin and auxin have long been known to interact antagonistically, and more recent studies have shown that cytokinins also interact with other plant hormones to regulate plant development.

Poster Abstracts - PDF Free Download

Effects of Pretreatments and Hormone Regime on Green Plant Production in Barley Isolated Microspore Culture Patricio Esteves. Universite Laval, Departement de Phytologie Pavillon Paul-Comtois 2425, rue de l’Agriculture Bureau 3223 Universite Laval Quebec (Quebec) G1V 0A6, Canada.

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].

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 ...