eChapters

Understanding Immunogenetics
The study of genetic basis of the immune response is known as immunogenetics. The term was introduced with the discovery of ABO blood groups and were first demonstrated through the existence of “natural” antibodies i.e., isoantibodies. The broad field of immunogenetics include study of normal immunological pathways as well as identification of genetic variations that result in immune defects, which may facilitate detection of new therapeutic targets for immune diseases. Hence, understanding and subsequent manipulation of host immune response (immunomodulation) is the most precise and effective tool to reduce disease incidences and nullify the limitations associated with antibiotic treatment or vaccination. Therefore, breeding for disease resistance has gained considerable attention from researchers in the recent past.
Immune Response Genes
Often it was observed that individuals respond differently to same infectious agent. A possible explanation may be the genetic variability between them. Indeed, many studies have looked for associations between genes involved in immunity and disease outcome and it has been found that certain immune response (Ir) genes play the crucial role. This concept was discovered in the mid-1960s and this discovery introduced an apparently new level of antigen recognition whose diversity and specificity had to be explained in addition to those of familiar immunoglobulins. Hence immune response (Ir) genes were defined as antigenspecific genes that control the ability of an animal to raise an immune response, either humoral or cellular to a particular antigen .

Prunus avium means “Bird Cherry” in the Latin language, is commonly known as ‘Sweet cherry’. Cherries have pleased the palates of food lovers for centuries. Their ruby-red colour and tangy taste won the hearts of kings, queens and noblemen in the history, making a special place for cherries on their tables. The ultimate celebration of cherries is the National Cherry Festival. It is held every year in July in the “Cherry Capital of the World”-Traverse City, Michigan. This festival originated from a spring ceremony known as the “Blessing of the Blossoms.” Thousands of visitors come from all over the world to celebrate the harvest and of course, eat cherries. A delicious fruit, cherry is rich in protein and sugars. Cherry is an excellent source of minerals like potassium, manganese, magnesium, iron, phosphorous and copper. Good amounts of vitamins (A, B, C and K) are found in cherries. They also contain anthocyanins, melatonin and fibers. It has more calorific value than apple. 

One of the important aspects of dry flowers is the pleasure of gathering flowers and grasses to make wonderful dried arrangements. The only drawback is that the original colors fade and the floral arrangements can end up looking like a bunch of straw. To enhance the colors of dried flowers, dyeing is advocated. While coloring ferns or small leaves, it is better to work on an aluminum foil or waxed paper so it can collect extra paint, which can be used on another leaf. Leaves should be lightly brushed, and never saturated with paint. The painted specimens are placed on the waxed paper or on a computer paper to dry. Newsprint should not be used.

I. FILL UPS

1. The process whereby seeds sprout and begin to grow is known as _____.
2. During germination of a seed, the water is absorbed through _____.
3. _____ is the onset growth of a seed often following a period of dormancy.
4. _____ is a type of germination in which cotyledons and shoot are carried above the soil level.
5. _____ is a type of germination in which the cotyledon or comparable structure remain in the soil.
6. Water moves into the tissues and cells by _____.

ABSTRACT

Multiple shoot induction from the cotyledonary node explants of Leucaena leucocephala was studied in presence of various concentrations of TDZ. With the increase in concentration of TDZ from 0.045 μM to 0.227 μM the number of regenerated shoots increased. However, the length of individual shoot decreased. Further increase in TDZ concentration upto 22.71 μM resulted in the formation shoot clusters. Presence of TDZ in the medium inhibited shoot elongation. Transfer of the regenerated shoots to ½ x MS medium supplemented with 0.54 μM NAA ensured elongation of the shoots, which also developed roots. Rooted plantlets were transferred to coco peat for further development and hardening. This highly efficient regeneration protocol may find application in the genetic transformation of this leguminous tree species.

1. The leaf roller is an important pest of
   1. Lemongrass
   2. Citronella
   3. Mint
   4. Bursera
2. The following aromatic plants is susceptible to powdery mildew
   1. Sacred basil
   2. Thyme
   3. Geranium
   4. Rosemary
3. Meloidogyne hapla is reported to affect
   1. Thyme
   2. Geranium
   3. Sage
   4. Lavender

Innovations in Field Extension

Of late, a lot of emphasis is being given on innovative extension approaches at the field level, in order to ensure an effective implementation of the Transfer of Technology (ToT) process. Many such new initiatives have been undertaken in India, the details of which are as under.

Farmer Field Schools - ANew Participatory Approach

What is primary cell culture?

In vitro culture of cells freshly obtained from the tissue is called primary cell culture. Unlike that of cell line, primary cell culture grows for a limited period of time. Examples, are primary mammary epithelial cells, primary hepatocyte culture.

Aim: To prepare the primary cell culture from chicken embryos.

Materials required for the primary cell culture

• 70% alcohol

• Cotton swabs

• Small beaker 20-50 ml

• Forceps

• Straight and required curved,

• 9 cm Petri dishes

• 11 day embryonated eggs

• Balanced Salt solution (BSS)

• 250 ml conical flask

• Magnetic centrifuge tubes

• Haemocytometer

• Growth medium with serum

• Culture flasks

Introduction
Some species of rod shaped bacteria e.g. E.coli, Ps. fluorescence, Bacillus subtilis are known to be motile. Bacterial motility is generally associated with the presence of hair-like appendages called “Flagella”. There are several ways for determining the motility of a culture such as the wet mount method, hanging drop method and a culture method (on semisolid medium). Bacterial cells in suspension also exhibit a vibratory or oscillatory movement without changing their relative position. This is termed ’Brownian Movement’ and it should not be confused for true motility of bacteria. In motility the cells change their relative position and move across the microscopic field in different directions.
1. The Wet Mount Technique
This is the simplest and quickest way to determine the motility of bacteria.
Materials
1. Clean glass slide
2. Broth culture of bacteria (E.coli, Ps.fluroscenes)
3. Cover glass
Procedure
1. Place a drop of organisms on clean glass slide and cover with a cover glass.
2. Examine the slide with phase contrast microscope or bright field microscope with reduced light under oil-immersion.

Introduction
A trademark is a recognizable sign, design, or expression which identifies products or services of a particular source from those of others. Trademarks play a crucial role in protecting brand identity and fostering consumer trust, acting as a legal safeguard against imitation and brand dilution. The concept of a trademark has evolved over centuries, adapting to changing business landscapes and globalization, thereby becoming a vital asset in business strategy.
Definition of Trademark
According to the World Intellectual Property Organization (WIPO), a trademark is a “sign capable of distinguishing the goods or services of one enterprise from those of other enterprises.” The purpose of a trademark is to help consumers identify and choose between products and services based on the reputation and goodwill of the brand.
Key Characteristics of a Trademark:
• Distinctiveness: A trademark must be unique and distinguishable from other marks.
• Non-descriptive: A trademark should not directly describe the goods or services it represents.
• Non-deceptive: The mark should not mislead consumers regarding the nature or origin of the product.
Trademarks include names, symbols, logos, sounds, colors, and even scents that can be associated with a product or service. For example, the Coca-Cola logo is trademarked for its distinct font and red-and-white color scheme, making it easily recognizable worldwide.

Objectives
• Understand the concept of communication gap.
• Identify the reasons behind communication gaps in personal, professional, and organizational settings.
• Explore the effects of communication gaps on relationships and productivity.
• Develop strategies to overcome communication gaps effectively.
Communication Gap
A communication gap occurs when there is a breakdown in the communication process, leading to misunderstandings, incomplete information transfer, or misinterpretation of messages. It can happen between individuals, groups, or organizations, and has significant impacts on relationships, productivity, and decision-making.
Reasons for Communication Gaps
Several factors contribute to communication gaps. These reasons can be categorized into three broad areas: individual, organizational, and technological.

Skeleton Leaves

Skeleton leaves are semi-transparent leaves, also called fossil leaves. They are prepared by soaking the fresh leaves in bleached water and then by hand rubbing the soft green flesh from the network of veins. The leaves can be then dyed to variant colors to give them a beautiful and pleasing appearance. Although delicate by nature, they are actually sturdy and can easily be glued to a variety of surfaces. They come in several colors and sizes to meet a complete line of crafting needs. The delicate beauty of these leaves is sometimes meant to capture life, hope and memories. These delicate, gorgeous skeleton leaves are a perfect accent for all craft projects. They make a beautiful and elegant statement when they adorn your wedding invitations. They work surprisingly well on gift tags, greeting cards, scrapbooks, collages, papermaking, stenciling, and stamping. They are perfect for decorating bridal bouquet, wedding reception table, candles, and wedding favors.

    1.    Trocar and canula : It is used to remove the gas from the rumen during bloat. It should be inserted by sliding the skin through the left paralumbar fossa. (Fig. 18.1). Sliding of skin decreases the chances the formation of ruminal fistula after its removal.

    2.    Probang gag : It is made of a wooden piece with a hole in the middle and straps on either ends. Wooden block having the hole is fixed in the mouth and straps are fastened behind the horn at the poll. The probing is passed through the hole in to the stomach (Fig. 18.2).

Eastern India is frequently affected by weather hazards, such as drought, flood and heat wave. The region consists of Orissa, West Bengal, and Bihar. The coastal states of Orissa and West Bengal frequently face cyclones, while Bihar and eastern U.P. face cold wave. Due to unfavorable seasonal weather, crop productivity is poor. However, the recent change in climate induced by global warming has further threatened the agricultural productivity in the region. Rice is the principal crop of Eastern India and rice based cropping systems has long been practiced in the region. While rice-rice is the most dominant cropping system in Orissa and West Bengal, rice-wheat is in Bihar and eastern U.P. Besides, rice-groundnut occupies a considerable area in the region. It is now doubtful whether the resilience of these cropping systems would continue sustaining the productivity under the climate change. The major aim of the proposal was to identify suitable adaptation measures of crop production under projected climate change. Climate change is expected to alter precipitation pattern, increase temperature, change in humidity level and decrease sunshine. As a result it is like to influence right from land preparation to the harvest and post harvest process. Thus the project aim was to revisiting the existing package of practices of selected cropping systems by simulation modelling, deduce suitable adaptation measures and validate these by OTC experiments.

ABSTRACT

The tomato TYLCV tolerant line MP-1 which has high efficiency of crossability & dwarf mutant dg/dg (Manapal) were choosen for the study of enhanced production of plantlets through tissue culture. The cotyledonary explants, hypocotyl sections & decapitated seedlings were taken to assess the regeneration efficiency of the explants as a base for efficient genetic transformation. The decapitated seedlings regenerated much faster (9.3 days) putting forth new sprouts of shootlets which were then transferred to rooting medium. Whereas cotyledonary leaves showed regeneration of plantlets (18.3 days) which is almost double the duration of decapped seedlings. The hypocotyl sections proliferated into callus & regenerated in a much slower rate (27 days). Hence, the faster rate of regeneration from decapitated seedlings served as a efficient base for enhanced production of plantlets during transformation studies. Also the number of harvest of new sprouts (2.3 regenerations) from decapitated seedlings is an added advantage for deriving more plantlets from single seedlings.

1.1. Types of energy

1.1.1. Potential energy

Stored energy and the energy of position (gravitational).

1.1.2. Kinetic energy

Energy in motion - the motion of waves, electrons, atoms, molecules and substances. It exists in various forms.

What is keratinocyte?

The epidermal layer consists of keratinocytes, melanocytes, Langerhans cells, and Merkel cells. Their major function is to produce Keratinocytes which are the most abundant cells in the epidermis, keratin protein. Keratinocyte synthesizes major structural components of the epidermal barrier through a programmed process of differentiation. They are present in the innermost layer of the epidermis (Eckert et al?, 1989). The epidermis is composed of several layers, stratum corneum (horny layer), stratum lucidum (clear layer), stratum granulosum (granular layer), stratum spinosum (prickle cell layer), and stratum basale (basal layer), from the outermost to the deepest layer respectively. The process of maturation and movement of the keratinocytes from the stratum basale to the stratum corneum is what we call epidermal differentiation.

Procedures for isolation of canine karatinocytes

When studying skin cells, isolating keratinocytes from tissue samples, such as skin biopsies, is a critical initial step. Here is a general guide on how to isolate keratinocytes:

Introduction
The characteristics of bacteria used in the study and identification of bacteria depend upon the behavior of populations or cultures rather than of individual organisms. Nutrient materials provided in a form, suitable for growth, are known as culture media. A Growth Media or culture medium is a liquid or gel designed to support the growth of microorganisms or cells.
I. Types of Culture Media
Different types of culture media may be used for cultivation of microorganisms such as liquid, solid and semi-solid.
i) Liquid Culture Media: Includes nutrient broth, Glucose broth, litmus milk etc. these media are used for the preparation of large number of microorganisms, fermentation studies and various other tests.
ii) Solid Media: A little agar, gelatin or silica gel; is added to a liquid medium to impart a degree of firmness to it. Nutrient agar, Blood agar, etc. are examples of solid media that are used for developing surface colony growth of bacteria and mold.
iii) Agar Slant Media: Test tubes or small bottles containing about 5ml. of solid medium, e.g. nutrient agar, dissolved and allowed to cool in a sloping position.
iv) Stab Media: Tubes or bottles containing agar medium are allowed to solidify in the upright position.
v) Semi solid Media: These are more jelly like due to lower percentage of the solidifiers. These media are particularly used for determining motility of bacteria.

Abstract

Three mulch materials (black polyethylene, white polyethylene, and paddy straw) were evaluated to reduce albinism  in five cultivars of strawberry.  The incidence of albinism was the highest (38.60%), with black polyethylene and the lowest with paddy straw (22.45%). Among cultivars, Etna had the highest incidence of albinism (50.60%), followed by Chandler (41.60%), where as  Sweet Charlie had the least (22.50%).