Razdan Plant Tissue Culture Pdf

[Carlota Sproul]

Planttissue culture has developed widely incorporated into biotechnology, the agricultural systems being a key factor to support many pharmaceutical and industrial outcomes. Since 1902 there is vast progress in plant culture and its application has emerged having great diversity in the science filed. Due to development and desire to grow on high scale production in the past few decades, tissue culture techniques were manipulated for improvement of plant growth, biological activities, transformation, and secondary metabolites production. A significant advance in techniques has been sought to deal with problems of low concentrations of secondary metabolites in whole plants. The augmented use of plant culture is due to a superior perceptive of plant oriented compounds and secondary metabolites from economically important plants. Due to development in modern techniques, several particular protocols have been developed for the production of a wide array of secondary metabolites of plants on a commercial scale. Plant tissue culture has to lead to significant contributions in recent times and today they constitute an indispensable tool in the advancement of agricultural sciences and modern agriculture. This review would enable us to have an analysis of plant tissue culture development for agriculture, human health and wellbeing in general.

The success of plant biotechnology relies on the fundamental techniques of plant tissue culture. Understanding basic biology of plants is a prerequisite for proper utilization of the plant system or parts thereof. Plant tissue culture helps in providing a basic understanding of physical and chemical requirements of cell, tissue, organ culture, their growth and development. Establishment of cell, tissue and organ culture and regeneration of plantlets under in vitro conditions has opened up new avenues in the area of plant biotechnology.

As a content and community manager, I leverage my expertise in plant biotechnology, passion for tissue culture, and writing skills to create compelling articles, simplifying intricate scientific concepts, and address your inquiries. As a dedicated science communicator, I strive to spark curiosity and foster a love for science in my audience.

Tissue culture is a technique used to grow plants under in vitro or lab conditions. The technique uses a few tissues or single plant cells to develop them into a whole plant. It utilizes the totipotent property of the plants, where each plant cell has the ability to transform and form any plant cell.

In this article, we will talk about 5 books that provide you with all the basic to advanced information on tissue culture. You can either choose one or read them all to strengthen your tissue culture knowledge.

If you are a beginner in the tissue culture area and want to test some plants in tissue culture. Then, these books can be proved resourceful for you. You can try out the plans and their procedures given in the book to practice tissue culture on your chosen desired plants.

The first edition of the book was published in 1983. But, since then many revisions have taken place to incorporate the discoveries and developed concepts. The book contains the basics of tissue culture, including theory, practicals, and some applied concepts in the area.

If you want to start learning from the zero of tissue culture, then this book is best to introduce you in the best way possible to the tissue culture technique. It is full of illustrations, figures, diagrams, and photos that help you better understand the concepts.

The book contains around nineteen chapters covering topics ranging from the history of tissue culture, media preparation, haploid production, Variant Selection, and protoplast isolation, to germplasm storage.

Plant tissue culture has become an integral part of agriculture biotechnology. And, Introduction to Plant Tissue Culture is a book that talks about the advancements in basic techniques, clonal propagation, and haploid and triploid production. All the concepts are combined with diagrams and illustrations for a better understanding of the concept.

The book is suitable for students and teachers both as it contains experiments and concepts that can be easily executed in labs all year round. The book has step-by-step protocols to tissue culture a range of plants, complemented with many detailed line diagrams.

The book has everything on tissue culture, ranging from protoplast culture, cell suspension cultures, haploid techniques, primary metabolism, phytohormones and growth regulators, and applications of plant tissue culture systems.

It has methods ranging from general methodologies, such as culture induction, growth and viability evaluation, and contamination control, to such highly specialized techniques as chloroplast transformation involving the laborious process of protoplast isolation and culture.

Plant Cell Technology is helping tissue culturists worldwide by providing unique and world-class products and services that smoothen their process. It has MS media, agar, gellan gum, Plant Preservative Mixture (PPM), culture vessels, Biocoupler (TM), and masks in its store to facilitate your processes.

There are different methods available for developing uniform plants using plant tissue culture. You can read more about them in our article on "7 methods of plant tissue culture". Most methods should ideally perform well for most plant species, however, certain plant species react well only to specific methods. This also depends on other factors like the type of explant and at what stage that explant was extracted. For many plant species like coffee, tea, eucalyptus, etc. somatic embryogenesis provides better plants as compared to other methods.

The embryo is a part inside a plant seed that contains the undeveloped forms of that plant's roots, stem, and leaves. The embryo develops after the process of fertilization takes place in the flowers. The seed is the starting point for the plant as the embryo activates in the right conditions and eventually becomes a seedling.

Fertilization is a process where the pollen (male part of the flower) fuses with the ovule (female part of the flower) to form an embryo. This is an important step in plant sexual reproduction. When fertilization happens, the fused cells form a 'zygote'. This zygote undergoes constant cell division and finally forms an embryo. We call this process of developing an embryo 'embryogenesis'.

When we talk about somatic embryogenesis, then we should also be aware of the process called 'parthenogenesis'. It is a natural process occurring for some plants such as pineapples, bananas, etc. Here the fruit is formed without going through fertilization. The female part of the flower directly converts into a fruit. As a result, the fruit developed is seedless.

In different researches, it has been observed that tissues that are part of the embryo sac, or those surrounding it, can also develop into an embryo. However, particular environmental conditions, which exist inside the embryo, are necessary for the development. This idea led to the development of the somatic embryogenesis method using the same principle.

We can define SE as a process in which embryo-like structures are produced using somatic tissues. These embryo-like structures then develop into a whole plant using different culture mediums. The key to remember for you is that this method's success depends on the composition of the culture medium.

Initiation and proliferation occur on a medium rich in auxin, which induces differentiation of meristematic cells. For this purpose, 2,4-D is the common auxin in use. Once transferred to a medium with low or no auxin, these cells can then develop into mature embryos. Germination of the somatic embryo can only occur when it is mature enough to have functional root and shoot apices

Somatic tissues are all the tissues other than the anthers (male reproductive cell) and the ovules (female reproductive part) in a plant. In SE, we use either cells from different parts of a plant or cells surrounding anther/ovule such as styles, nucellus, etc. which are not directly involved in embryo formation in nature. The embryos developed using these tissues do not possess seed coats. We can use different gelling agents to create a similar seed coat. This process leads to the formation of synthetic seeds. We will discuss more on this in upcoming articles!

Direct somatic embryogenesis: In this process, the embryo is developed directly from a cell or small group of cells such as nucellus, styles, or pollen without any intermediate callus stage. This method is rarely used as the survival rate of the produced plants is low.

Indirect somatic embryogenesis: In this process, the development of an embryo occurs with an intermediate callus stage. So, it is a multistep process. Firstly, callus is formed from explant and then these callus tissues are used for producing embryos. These embryos later form whole plantlets. This method is followed for many plant species such as tea, coffee, etc. which are generally difficult to propagate via other plant tissue culture methods.

We hope you got a glimpse of what somatic embryogenesis is and why it is one of the interesting methods for plant regeneration in the plant tissue culture industry. For more informational posts on different methods of plant tissue culture, keep checking this space!

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