The present invention relates to excision of explant material comprising meristematic tissue from cotton seeds. Methods for tissue preparation, storage, transformation, and selection or identification of transformed plants are disclosed, as are transformable meristem tissues and plants produced by such methods, and apparati for tissue preparation.

The invention relates to a method for producing a recombinant protein in cells with a cell wall, comprising the step of increasing the secretion of the recombinant protein through the cell wall by expression of the protein in the cells in a culture medium containing a combination of a surface-active polymer and monovalent metal ions and with an osmolarity at least 0.32 osmol/L, said invention further relating to culture media and nutrient mixtures for the method.

The invention refers to standardized plant extract from biomass of in vitro cultures of Haberlea rhodopensis Friv. (HR), containing bioactive compounds and their primary secondary metabolites, containing in weight %, as follows: organic acid from 4.0 to 6.0, fatty acids from 0.5 to 1.5, amino acids from 8.0 to 12.0, sterols from 0.5 to 1.0, free phenols from 3.0 to 6.0, sugars from 45 to 55, and polyphenols from 25.0 to 35.0, with a predominant myconoside content of 70% to 96% in the polyphenolic fraction, constituting 18% to 35% of the total extract, and to a composition containing the standardized extract and glycerol as well as to a method for the preparation of a standardized plant extract.

The method according this invention, along with its optimally chosen steps, specific conditions, parameters such as temperature, duration, stirring, light, growth factors, etc. achieves both maximum volumetric productivity of the target substances and myconoside, as well as stable productivity of the plant in vitro cultures and is a reliable efficient 24/7 continuous system for production of NPs.

Dependence on natural factors, limited availability and protection of HR rare wild plant populations are eliminated. The limitations posed by seasonality and slow HR growth are also avoided by developing a renewable, ecologically method. The developed method provides alternative, renewable and sustainable sources of raw plant material necessary to obtain the target extract. The resulting extract standardized in myconoside is especially valuable with its protective action on human health and can successfully be used with its pharmacological, cosmetic effects as well as in functional foods.

The process described herein may provide the benefit of selectively generating plant-based materials with tunable cellular compositions and material properties in controlled forms without necessarily requiring whole-plant cultivation or harvest. An example process may include extracting and maintaining live plant cells via leaf maceration and liquid culturing, transferring cells from the liquid culture to a gel medium, integrating the cells into a hydrogel scaffold, and shaping the scaffold. This process, using the disclosed tissue engineering-style approach, may further allow for localized and high-density biomass production, eliminate energy intensive harvest and hauling, reduce processing, and inherently foster climate resilience.

A device for directionally placing a plant propagule (2) inside a hollow member (3), as exemplarily illustrated in FIGS. 4-7, comprising a platform element (20) arranged such that a foldable member (1) can be placed thereon; an actuating dispensing arrangement (90a, 90b, 100) for placing a foldable member (1) on the platform element (20); an arrangement (40)/(40a)for placing a plant propagule (2) on a foldable member (1) placed on the platform element (20); optionally, means (150) for identifying an imaginary line (9) on the foldable member (1) stretching through the root forming end (7) to the shoot forming end (8) of the propagule (2) being directionally placed during operation; an actuating folding arrangement (30, 80)/(120/80) for folding the foldable member (1) along said imaginary line (9) to form a folded foldable member (1a); an actuating dispensing arrangement (180) for providing a hollow member (3) having a first open end (4); and an actuating placing arrangement (30, 80)/(120/80) for placing said folded foldable member (1a) into the hollow member (3) through the first open end (4). Related methods for handling plant propagules, in particular somatic plant embryos.

The present invention relates to excision of explant material comprising meristematic tissue from cotton seeds. Methods for tissue preparation, storage, transformation, and selection or identification of transformed plants are disclosed, as are transformable meristem tissues and plants produced by such methods, and apparati for tissue preparation.

Provided herein are enzymatically decellularized cells, and methods of producing said cells, that can be used in a scaffold. The scaffolds featured herein are biocompatible and can comprise decellularized cells that have been modified to express a bioactive agent or molecule.

The present invention relates to a trypsin-free cell stamp system and a use thereof. According to the present invention, an increase in the passage number of stem cells can be prevented compared with conventional methods of isolating cells from a cell culture dish, while providing a support, which is an essential condition of cell growth, by introducing the trypsin-free cell stamp system, and cells can be continuously supplied for a polymer-based fiber support without an additional subculture process since the empty space of a cell culture dish is filled as times passes. In addition, the artificial effects on cells can be minimized since the cells migrate to a polymer-based nano/micro-fiber support without other external stimulation, and thus the potency of stem cells is increased, thereby inducing more effective differentiation, such that the present invention, as a cell therapeutic agent, can be utilized in general fields of regenerative medicine and tissue engineering.

Disclosed is a wet granulated cell culture medium and a preparation method therefor and, more specifically, to a wet granulated cell culture medium which supports the growth of mammalian cells and/or insect cells and/or plant cells and bacteria, and a preparation method therefor.

There are provided compositions and methods for transforming plants, preferably monocot, and even more preferably, sugarcane. The transformation methods involve infection of plant tissue with Agrobacterium, and co-cultivation using culture medium comprising high concentrations of gelling agent, with the result of inhibiting the exacerbated growth of the bacteria and increasing the transformation frequencies. The invention includes regenerating transformed plants, and the transformed plants themselves.