结构与功能

The phytohormone auxin plays a pivotal role in plant development, regulating a myriad of processes including embryo patterning, root patterning, organ initiation, and vein patterning. Auxin is unique among the plant hormones as it is actively transported from cell to cell in a polar fashion. ...

With the advent of indexed mutagenized insertion lines in Arabidopsis, it is now possible to order small knockout collections of particular genes to probe a question of biological interest. This first requires querying Arabidopsis databases to identify lines of interest, ordering th ...

Plant endomembrane system is essential for viability and necessary for proper development and signal transduction signal processes. Links between the endomembrane system and auxin signaling have been reported by classical genetics screens. However, the relationship betwe ...

Endogenous small RNAs, including microRNAs (miRNAs) and small interfering RNAs (siRNAs), play important regulatory roles in development, hormone signaling, stress responses, and genome stability. These small RNAs induce transcriptional or posttranscriptional gene sile ...

Studies on hormone-receptor interaction include, as a rule, isolation and extensive purification of the receptor protein or a particular receptor-containing fraction. To bypass these time- and resource-consuming procedures, we proposed a live cell-based assay using transgen ...

Hormonal signals are transduced (and sometimes perceived) by protein–protein interactions. Understanding these interactions is therefore crucial to understanding the network of signalling components as a whole. Often, genetic analysis serves up a selection of players that m ...

Horticultural crops are economically valuable for sustainable agricultural production. Plant diseases caused by Pathogens including virus, phytoplasma and bacterium have been a great threat to production of horticultural crops. The efficient use of pathogen-free plant mat ...

White or light purple flower color Torenia (Torenia fournieri Lind.) varieties were successfully developed from the parental variety having violet flowers. This was accomplished by reducing Fe micronutrient in the culture media for the induction of in vitro flowering. The flower indu ...

Pineapple (Ananas comosus L., Merr.) is a commercially important crop, grown in the tropical and subtropical regions. However, the crop is faced with postharvest damage and poor varietal and nutritional improvement. Being a vegetatively propagated crop, conventional breeding prog ...

Bananas that provide a staple food to the millions of people are adversely affected by several viruses such as Banana bunchy Top Virus (BBTV), Banana Streak Virus (BSV), and Cucumber Mosaic Virus (CMV). These viruses are known to have a devastating effect on crop production and constraint to the inte ...

The encapsulation technology consists of the inclusion of some millimeter-long plant portions in a nutritive and protective matrix. This technology represents a further and promising tool for exchange of plant material between private and public plant tissue culture laboratori ...

Juvenility and phase change in woody plant species exert profound impacts on plant morphology and the ability of explants to be successfully propagated in vitro. Morphological characteristics such as leaf shape modifications, thorniness, and the inability to initiate flowers are a ...

In vitro plant production by direct organogenesis from immature flower heads is an ideal approach for clonal propagation of onions (Allium cepa L.). This technique ensures genetic stability, high propagation rate, and maintains donor plant of explants with an advantage over other means of ...

Gerbera (Gerbera jamesonii Bolus) is one of the most popular ornamental flowers worldwide and used both as cut flower and potted plant. Some of them show excellent agronomic characters such as color, floral diameter, stem length, and vigor, which make this plant of commercial importance. Conv ...

Irises are perennial plants widely used as ornamental garden plants or cut flowers. Some species accumulate secondary metabolites, making them highly valuable to the pharmaceutical and perfume industries. Micropropagation of irises has successfully been accomplished by cul ...

Micropropagation is an important tool for rapid multiplication and the creation of genetic variability in African violets (Saintpaulia ionantha Wendl.). Successful in vitro propagation depends on the specific requirements and precise manipulation of various factors such as t ...

This protocol describes an efficient and rapid method for large-scale multiplication of Cordyline terminalis in a cost-effective manner. Actively growing shoot tips were selected as explants. Murashige and Skoog (MS) basal medium was supplemented with different plant growth reg ...

Helleborus genus, belonging to the Ranunculaceae family, has 20 species of herbaceous perennial flowering plants. The commercial exploitation of this plant is dependent on the selection and propagation of appropriate lines. High propagation rate could be accomplished by using a sui ...

Fraser photinia (Photinia � fraseri Dress.) is a woody plant of high ornamental value. The traditional propagation system for photinia is by rooting apical cuttings using highly concentrated auxin treatments. However, photinia micropropagation is an effective alternative to tra ...

Hydrangea (Hortensia) is a highly popular ornamental plant for garden decoration, and now it is commercially produced for cut flower branches. For in vitro culture, Murashige and Skoog medium supplemented with BA (0.25 mg/L) and sucrose (30 g/L) was used. Culture conditions were 23 � 1�C of tempera ...