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Expansins are cell wall proteins that promote cell wall loosening by inducing pH-dependent cell wall extension and stress relaxation. Expansins are required in a series of physiological developmental processes in higher plants such as seed germination. Here we identified an Arabidopsis expansin gene AtEXPA2 that is exclusively expressed in germinating seeds(More)
A putative ABC (ATP-binding cassette) transport gene cluster pltHIJKN was identified and characterized within a 7.5-kb genome region downstream of the antibiotic pyoluteorin (Plt) biosynthetic gene cluster in Pseudomonas sp. M18, a rhizosphere bacterium which is of ecological importance for controlling plant diseases caused by soil-borne fungal pathogens.(More)
The Arabidopsis trichome is a model system for studying cell development, cell differentiation and the cell cycle in plants. Our previous studies have shown that the ZINC FINGER PROTEIN5 (ZFP5) controls shoot maturation and epidermal cell fate through GA signaling in Arabidopsis. We have identified a novel C2H2 zinc finger protein ZINC FINGER PROTEIN 6(More)
Although root hair development in Arabidopsis thaliana has been extensively studied, it remains unknown whether the zinc finger proteins, the largest family of transcription factors in plants, are involved in this process. Here we report that the C2H2 zinc finger protein ZINC FINGER PROTEIN 5 (ZFP5) is a key regulator of root hair initiation and(More)
Direct extraction of soil DNA has become essential for the study of soil microorganisms. Humic substances co-extracted during DNA retrieval is a big problem because it greatly inhibits the enzymes involved in manipulating DNA. Popular commercial kits available for soil DNA extraction are unable to overcome this problem. Here we report an effective protocol(More)
In recent years, the Triple Helix model has identified feasible approaches to measuring relations among universities, industries, and governments. Results have been extended to different databases, regions, and perspectives. This paper explores how bibliometrics and text mining can inform Triple Helix analyses. It engages Competitive Technical Intelligence(More)
Trichomes are specialized structures that develop from epidermal cells in the aerial parts of plants, and are an excellent model system to study all aspects of cell differentiation including cell fate determination, cell cycle regulation, cell polarity and cell expansion. The development of the trichome is a process of integration of both external signals(More)
MADS-box transcription factors are vital regulators participating in plant growth and development process and the functions of most of them are still unknown. ANR1 was reported to play a key role in controlling lateral root development through nitrate signal in Arabidopsis. OsMADS25 is one of five ANR1-like genes in Oryza Sativa and belongs to the ANR1(More)
The pltR gene, coding a putative LysR-type regulator, was identified upstream Plt biosynthetic gene cluster in Pseudomonas sp. M18 using bioinformatics technology. The null mutation of pltR resulted in mutant M18TRG (pltR::Gm) by recombination and its Plt (Pyoluteorin) production declined to 30% while PCA (Phenazine-1-carboxylic acid) production remained(More)
Multiple phytohormones, including auxin, ethylene, and cytokinin, play vital roles in regulating cell development in the root epidermis. However, their interactions in specific root hair cell developmental stages are largely unexplored. To bridge this gap, we employed genetic and pharmacological approaches as well as transcriptional analysis in order to(More)