
Explore the in vitro cultivation of plant parts in nutrient media under aseptic conditions, covering explants, callus formation, dedifferentiation, redifferentiation, and totipotency.
Learn the steps of plant tissue culture: explant selection, HgCl2 or alcohol sterilization, and inoculation into nutritional media. Incubate to regenerate plantlets, then transfer to greenhouse and review culture types.
Explore callus culture formation from undifferentiated plant cells, including explant selection, surface sterilization, and suspension culture, guided by factors such as physical factors and growth regulators like auxins and cytokinins.
Explore leaf sterilization and callus formation, then transfer to nutrient media to enable plant-derived secondary metabolites via cell suspension culture. Compare batch and continuous cultures and their five growth phases.
Explore batch culture types in plant tissue culture, including slowly rotating nipple-flask culture, shake culture on orbital shakers, spinning culture in ten-liter bottles, and stirred culture with a magnetic stirrer.
Maintain culture volume by continuously adding fresh nutrient medium and removing used medium, under defined cell density and oxygen, in open and closed forms like chemostats and torpedo stats.
Explore open continuous culture, where fresh medium inflow balances outflow to maintain steady growth, and compare chemostat and turbid state systems in plant cell cultures.
Examine closed continuous culture, balancing fresh medium inflow with spent medium outflow to steadily increase biomass for cyto differentiation and secondary metabolite production.
Compare batch and continuous culture, highlighting slower growth with nutrient decline in batch, faster growth and continuous operation, contamination risks, and their use for secondary versus primary metabolites.
Explore meristem culture, focusing on the shoot apical meristem or shoot tip culture, introduced in 1952 by Morel and Martin, using mass medium with low salt concentration.
Perform meristem culture by sterilizing apical tips and transferring to murashige schools medium, using cytokinins for shoot formation and auxins for root development, then harden in greenhouse.
Meristem culture enables virus-free plants through in vitro and micropropagation, supporting clonal propagation, plant breeding, and germplasm conservation, with cryopreservation for long-term preservation.
Learn protoplast culture from leaf tissue, including enzymatic isolation, centrifugation purification, cell wall regeneration, callus formation, and shoot and root differentiation.
Explore spontaneous, mechanical, and induced protoplast fusion, including plasmodesmata-mediated fusion and chemical or electrofusion techniques. Study protoplast culture, viability testing with fluorescein diacetate, and somatic hybridization yielding cybrids.
Explore protoplast applications in plant tissue culture, from DNA transformation and somaclonal variations to protoplast fusion, fluorescence-activated sorting, and regeneration into complete plants.
Explore bud culture concepts in plant tissue culture, focusing on single node culture and axillary bud methods, using cytokinins for shoot development and auxins for root formation.
Cultivate axillary buds by isolating shoot tips or nodes and using high cytokinin concentrations to promote axillary shoot formation in single-node and auxiliary-bud culture.
Explore seed culture in plant tissue culture, emphasizing in vitro sterilization, explants from in vitro plants, sterile seedling production, and orchid seed germination under laboratory conditions.
Explore embryo culture, aseptically isolating embryos from seeds and growing them in vitro on solid-liquid nutrient media. Focus on mature embryo culture and embryo rescue, including polyembryonic and immature embryos.
Demonstrates embryo culture applications that overcome embryo abortion, overcome seed dormancy, shorten breeding cycles, and produce haploids, clonal propagation, and polyembryony across crops like tomato and legumes.
Explore anther culture to produce haploid plants via androgenesis, using microspores and four pathways, through direct embryogenesis or indirect organogenesis in sterile nutrient media.
Explore anther culture for haploid production, protoplast isolation, and transformation to accelerate crop improvement in vegetables and cereals, noting its simple, time-saving advantages.
Explore the limitations of anther culture, including haploid production challenges, polyploid outgrowth, albino plant formation, and the economic viability of in vitro methods.
Examine plant tissue culture media, focusing on White's medium developed by Pierre White in 1963 for tomato root culture, with low salt and higher magnesium sulfate concentrations.
Explore the Murashige medium, a plant growth medium developed in 1962 to induce organogenesis and regeneration, now widely used for various plant tissue culture systems.
Use Gamborg B5 medium to support cell suspension, callus, protoplast, tissue, and organ cultures, with potassium nitrate boosting soybean root callus and ammonium sulfate enhancing growth.
Explore how scientists developed n6 medium and six medium, containing macro and micro nutrients and vitamins, to initiate, grow, and differentiate rice callus cultures, with ammonium concentration identified as crucial.
Explore plant tissue culture media, including niche medium for anther cultures, and compare synthetic, chemically defined media with natural media made from plant extracts.
Explore how plant tissue culture media supply macronutrients and micronutrients, plus organic supplements and growth regulators, to drive in vitro growth and morphogenesis.
Identify external carbon sources essential for energy in cultured plant cells, with sucrose as the preferred carbon source and glucose supporting strong growth, while fructose is less efficient.
Explore macronutrients for plant tissue culture, including nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur. Learn how culture media supply at least 25 millimoles via nitrates and ammonium.
This lecture contrasts macronutrients and micronutrients in plant tissue culture media, detailing essential micronutrients such as iron, manganese, zinc, boron, copper, cobalt, and molybdenum, and chelated forms like iron EDTA.
Compare macronutrients and micronutrients in plant tissue culture, including absorption, roles in structure and osmotic potential, and toxicity, then review organic supplements and essential vitamins with dosage ranges.
Add amino acids such as l-glutamine, glycine, arginine, and cysteine to plant tissue culture media to boost growth and establish cell lines, with organic nitrogen uptake favored.
Identify organic supplements used in plant tissue culture media, such as milk protein, coconut milk, yeast extract, malt extract, and fruit juices, and their age-related variability.
Explore how activated charcoal in plant tissue culture media stimulates growth and differentiation in carrot, tomato, and orchids, while inhibiting tobacco and soybean growth via hormone adsorption and phenol removal.
Explore antibiotics in plant tissue culture media to prevent microbial growth, enabling gene cloning and transformation, and useful organic supplements like vitamins, amino acids, and organic extracts.
Explore plant growth regulators—auxins, cytokinins, gibberellins, and abscisic acid—their promoters and inhibitors, and auxin-driven processes like phototropism, apical dominance, and seedless fruit development.
Explore cytokinins, plant growth regulators that promote cell division and shoot differentiation in tissue culture, and learn how the auxin–cytokinin balance shapes morphogenesis and aging.
Gibberellins are plant growth regulators that govern stem elongation and germination, with gibberellic acid speeding germination and GA3 used in tissue culture to boost callus growth and elongate dwarf plants.
Gibberellins promote stem and root growth, seed germination, flowering, bolting, apical dominance, and parthenocarpy, with uses in fruit setting, brewing, and banana and grape storage.
Explore abscisic acid and ethylene as growth inhibitors, focusing on abscisic acid's roles in flowering regulation in Arabidopsis, stomatal closure, leaf senescence, seed germination, and callus growth in tissue culture.
Explore abscisic acid's roles in stomatal closure, seed dormancy and germination inhibition, fruit ripening delay, leaf senescence, and stress-responsive gene expression governing environmental stress tolerance.
Explore ethylene, a gaseous plant hormone that ripens fruit, influences flowering and leaf shedding, and acts as a growth regulator across plant parts.
Summarizes plant tissue culture media components and growth regulators, including auxins and cytokinins, gibberellins and abscisic acid, plus inorganic and carbon sources and agar as a solidifying agent.
Maintain plant tissue culture media at 5.0 to 6.0 for growth during media preparation. Prevent post-autoclave shifts outside 4.5–7.0, which halt plant cell growth, and avoid contamination.
Prepare tissue culture media from 10x-100x stock solutions in demineralized water. Dissolve growth regulators in Inuvik or alcohol; autoclave at degree centigrade and 15 psi for 20 minutes; filter-sterilize hormones.
Select a suitable medium for plant tissue culture by testing 3–5 growth regulator concentrations and combinations of auxins and cytokinins, and emphasize careful medium preparation to avoid harming cultures.
Learn plant tissue culture media preparation, including media composition, macro- and micronutrients, plant growth regulators, sterilization, and solidifying agents.
Who is the father of tissue culture?
Gottlieb Haberlandt
Gottlieb Haberlandt is known as the father of plant tissue culture.
Gottlieb Haberlandt (28 November 1854 to 30 January 1945) was an Austrian botanist.
His original idea presented in 1902 was called Totipotentiality.
Explant
An explant is the part of a plant which has got the regeneration potential and is capable to give rise to the whole plant.
Step 1 Explant for callus culture
Step 2 Surface sterilization
Step 3 Factors affecting callus culture
Physical factors
Growth regulators
Step 4 Suspension culture from callus
Callus culture callus is the undifferentiated and unorganized mass of plant cells
It is basically a tumor tissue which usually forms on wounds of differentiated tissues or organs
Callus formation in vivo is frequently observed as a result of wounds at edges of stems or roots
Explant for callus culture
The explant for callus culture may be the differentiated tissue from any part of the plant
The explant for callus culture may be the differentiated tissue from any part of the plant
The selected explant tissues may be at different stages of cell division cell proliferation and organization into different distinct specialized structures
If the explant used possesses meristematic cells then the cell division and multiplication will be rapid
Factors affecting callus culture
Many factors are known to influence callus formation in invitro cultures
MS medium most commonly used physical factors and growth factors
Rest will continue with live session.
Major types of Media
MS media
B5 media
N6 Media
Niches media
Classification of Plant tissue culture
inorganic nutrients
Carbon Energy sources
Macro nutrients
Micro nutrients
Difference between macro and micro nutrients
Organic supplements
Vitamins
Amino acids
other organic supplements
activated charcoal
Antibiotics
Growth regulators
Auxins
Cytokinin
Gibberellins
Plant growth promoters
Plant growth functions
Plant growth applications
commercial usage
plant growth inhibitors
ABA
applications of ABA
effects of ABA
Ethaline uses
Solidifying agents
Gelatin
PH of Medium
Suitable, selection and sterilization of medium
Overview