摘要:
A fiber-producing plant comprising in its genome a heterologous genetic construct is disclosed. This genetic construct comprises a fiber-specific promoter and a coding sequence encoding a plant peroxidase. Preferably, the coding sequence is for cotton peroxidase. Seeds of the plant containing this genetic construct and plant cells containing this construct are also disclosed.
摘要:
Procédé de transformation de riz. Le procédé consiste en la préparation de copies d'une structure d'acide nucléique, avec lesquelles on enrobe des particules porteuses biologiquement inertes. Dans un mode de réalisation, les particules porteuses recouvertes d'acide nucléique sont physiquement accélérées vers des embryons de riz immatures. Dans un autre mode de réalisation, les particules porteuses enrobées d'acide nucléique sont accélées vers des disques coupés de la région du méristème d'un jeune plan de riz. On cultive à la fois les embryons et les disques bombardés afin de produire des jeunes pousses. On cultive ces jeunes pousses jusqu'à obtention de plans entiers sexuellement matures, dont certains sont transformés. La présence de la structure d'acide nucléique est vérifiée soit dans les jeunes pousses soit dans les plans sexuellement matures. On peut citer à titre de mode de réalisation particulièrement avantageux de l'invention un riz transformé présentant des marques.
摘要:
Appareil de transformation génétique à médiation particulaire d'organismes in vivo et comportant deux parties, une unité de support et une unité de manipulation (34). L'unité de manipulation (34) possède des dimensions convenant à une manipulation manuelle de sorte qu'elle peut être placée facilement contre les organismes dont les cellules doivent être transformées. L'unité de manipulation (34) est reliée à l'unité de support par un cordon ombilical flexible de sorte que l'unité de manipulation (34) peut être placée à l'endroit souhaité. L'appareil est particulièrement bien adapté pour la trasnformation pratique de cellules somatiques sur le corps entier d'animaux ou d'êtres humains.
摘要:
Transgenic plants have been created which express an insect-specific toxin from a scorpion. The chimeric inheritable trait produced conditions of toxicity in the plant cells of toxicity to certain insects upon ingestion of plant tissues. The inheritable trait has also been cross-bred to plants transgenic to the Bacillus thuringiensis delta-endotoxin to produce plants having two independent insect-specific toxin traits. Insect feeding trials revealed additive toxic effects. A generalized approach for developing other insecticidal toxins as candidates for insertion into transgenic plants is also presented.
摘要:
A method and apparatus is disclosed for the genetic transformation of soybean plants and plant lines by particle mediated transformation. Foreign genes are introduced into regenerable soybean tissues by coating on carrier particles which are physically accelerated into plant tissues. The treated plant tissues are then recovered and regenerated into whole sexually mature plants. The progeny are recovered from seed set by these plants and a portion of these progeny will contain in their genome the foreign gene. The procedure may be used to create novel genetically engineered soybean plants and lines.
摘要:
A method is disclosed for producing quantities of microbial inoculants for agricultural uses which involves preparing a medium of ground vemiculite, a nutrient and water. Wheat flour is disclosed as a preferred nutrient for fungal cultures. The medium is placed in containers, sterilized and inoculated with a microbial culture which grows out in the containers. The resulting product can be used moist or air-dried for ease in handling and storage. If the product is to be used moist, plastic bags may be used as the containers so that fermentation, formulation and packaging can all be handled in one step.
摘要:
A strategy is disclosed for effecting useful somatic changes in plants by causing the transcription in the plant cells of negative RNA strands which are substantially complementary to a target RNA strand. The target RNA strand can be an mRNA transcript created in gene expression, a viral RNA, or other RNA present in the plant cells. The negative RNA strand is complementary to at least a portion of the target RNA strand to inhibit its activity in vivo .
摘要:
Animal pests capable of nitrogen fixation are controlled by treatment with a metal compound of either molybdenum or tungsten. Such metal salts are uniquely toxic to termites and shipworms in low dosages, and may be inorporated into direct control agents, termite baits or soil inoculants, for example, or may be incorporated with other ingredients in a wood treating dip or pressure treating composition for wood preservation.
摘要:
A fiber-producing plant comprising in its genome a heterologous genetic construct is disclosed. This genetic construct comprises a fiber-specific promoter and a coding sequence encoding a plant peroxidase. Preferably, the coding sequence is for cotton peroxidase. Seeds of the plant containing this genetic construct and plant cells containing this construct are also disclosed.