Thin cell layer

Sự phát sinh mô sẹo từ nuôi cấy lớp mỏng tế bào mảnh lá (transverse Thin Cell Layer tTCL) ở cây hồ tiêu đã được ghi nhận. Sự phát sinh cơ quan chồi từ nuôi cấy mô sẹo có nguồn gốc từ nuôi cấy tTCL mảnh lá đã được mô tả. Những đám tế bào chưa phân hóa trong khối mô sẹo được hình thành từ nuôi cấy tTCL có nguồn gốc tế bào nhu mô của mô thịt lá qua nuôi cấy tTCL đã được định hướng thành những cơ quan đỉnh sinh trưởng và chồi hoàn chỉnh....

5p nhatro75 21-07-2012 213 76   Download

In the present study, somatic embryogenesis via callus formation from cultures of leaf transverse thin cell layers of Vietnamese ginseng was investigated. α-naphthaleneacetic acid(NAA), 2,4-dichlorophenoxyacetic acid (2,4-D), 6- enzylaminopurine (BA) and thidiazuron (TDZ) were added separately and in combination into the culture media.

11p jangni 16-04-2018 7 0   Download

The objective of the study was to find the explant resources, the type and concentration of plant growth regulators (PGRs), as well as the in vitro culture conditions suitable for different morphogenesis processes - callus induction, direct embryogenesis, shoot and root formation, etc. The growth and development of in vitro Ngoc Linh ginseng derived from thin cell layer (TCL) was examined in Quang Nam to assess the adaptability of in vitro Ngoc Linh plantlets in its natural territory, compared to those growing in Bidoup - Nui Ba National Park, Lam Dong.

27p xacxuoc4321 09-07-2019 2 0   Download

Tuyển tập báo cáo nghiên cứu khoa học của trường đại học nông nghiệp 1 đề tài: Developing an Agrobacterium-mediated transformation system for Lilium x formolongo using thin cell layer of bulb scales...

6p thulanh2 07-09-2011 48 5   Download

Results also showed that the addition of proline (0.75 g/l) or spermidine (0.15 mM) to the culture medium increased the number of secondary embryos considerably. The fully developed plantlets exhibiting healthy roots and shoots were obtained when somatic embryos were sub-cultured onto B5 medium containing 1.5 mg/l IBA.

11p nguyenhong1235 28-11-2018 5 0   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Improvement of performance of InAs quantum dot solar cell by inserting thin AlAs layers

5p sting05 10-02-2012 25 4   Download

This paper presents a novel water-based ZnO precursor stabilized with labile NH3, which allows the spinning of coat crystalline ZnO thin films at a temperature below 200 oC. Thin film transistors (TFTs) and diode-type quantum dot solar cells (QD SCs) were fabricated with ZnO as electron conduction layer. In the QD SCs, a p-type 1,2-ethylenedithiol treated PbS QDs with a bandgap of 1.4 eV, was spin-coated on top of ZnO layer by a layer-by-layer solid state ligand exchange process.

7p cathydoll4 21-02-2019 3 0   Download

Tóm tắt mục đích, nội dung nghiên cứu Để tìm các điều kiện nâng cao tần số tạo chồi trên một số giống cây ăn quả, chúng tôi đã dùng phương pháp nuôi cấy lát mỏng tế bào cắt ngang (transverse thin cell layer) và cắt dọc (longgitudinally thin cell layer) thực hiện trên các đối tượng cây ăn quả như: điều, măng cụt, cam chanh và nhãn. Kết quả nghiên cứu cho thấy tần số chồi phát sinh cao từ các lớp mỏng cắt ngang và cắt...

3p gauhaman123 18-11-2011 75 16   Download

TÓM TẮT được biết đến như một trong những cây trồng quý thuốc. Nó đã được sử dụng tại Việt Nam các biện pháp truyền thống. Invitro Aloe vera tuyên truyền đóng một vai trò rất quan trọng đối với trồng cây này ở quy mô lớn hơn.

4p phalinh2 01-07-2011 58 13   Download

Cây Nha đam (Aloe vera L) hiện nay được sử dụng trên khắp thế giới để trị nhiều bệnh như viêm da, ung thư. Chất gel của cây nha đam được sử dụng nhiều nhất là làm thuốc bôi da, thuốc chữa những vết bỏng nhỏ, những chỗ trầy xước, viêm loét miệng và những tổn thương biểu mô khác (Kathi J. Kemper và Victoria Chiou, 1999).

4p sunny_1 09-08-2013 46 8   Download

Trong bài báo này, các tác giả trình bày kết quả nghiên cứu nuôi cấy lát mỏng tế bào cây lan Hoàng thảo Nghệ tâm (Dendrobium loddigesii Rolfe). Nguyên liệu ban đầu là lát cắt mỏng theo chiều ngang (tTCL - traverse thin cell layer) của chồi in vitro. Kết quả cho thấy, môi trường gây hiệu ứng tối ưu để sản sinh protocorm - like bodies là môi trường VW + 20 g/l sucrose + 10% nước dừa + 7 g/l agar + 1,5 mg/l BA (tạo ra 30,1 protocorm - like bodies/lát mỏng sau 6 tuần nuôi cấy).

5p trangcham1896 20-12-2018 11 2   Download

In this work, perovskite planar solar cells were fabricated on corning substrates with the structure as follows: the first layer made of tantalum-doped tin oxide as transparent contact material, followed by sputtering niobium-doped titanium oxide as the compact electron transport layer; covered with perovskite CH3NH3PbI3 as the light harvester by combination between spin-coating and dipping methods; CuSCN was evaporated as the hole transport layer; the final thin Al/Ag electrodes were deposited.

10p thuyliebe 08-10-2018 9 0   Download

This study explores the conditions necessary for low temperature fabrication of Al2O3 thin films by the ALD technique. Properties of the Al2O3 thin films were anlysised by variable-angle spectroscopic ellipsometer (VASE) and X-ray photoemission spectroscopy(XPS).

4p trangcham1896 10-12-2018 7 0   Download

The bark structure of Quercus faginea Lam. in trees 30–60 years old grown in Portugal is described. The rhytidome consists of 3–5 sequential periderms alternating with secondary phloem. The phellem is composed of 2–5 layers of cells with thin suberised walls and narrow (1–3 seriate) tangential band of lignified thick-walled cells.

10p vi4mua 24-02-2019 3 0   Download

PLANT CELLS ARE SEPARATED from their environment by a plasma membrane that is only two lipid molecules thick. This thin layer separates a relatively constant internal environment from highly variable external surroundings. In addition to forming a hydrophobic barrier to diffusion, the membrane must facilitate and continuously regulate the inward and outward traffic of selected molecules and ions as the cell takes up nutrients, exports wastes, and regulates its turgor pressure.

22p anhphuonggl 11-04-2013 49 7   Download

The inner face of the nuclear envelope of metazoan cells is covered by a thin lamina consisting of a one-layered network of intermediate filaments inter-connecting with a complex set of transmembrane proteins and chromatin associating factors. The constituent proteins, the lamins, have recently gained tremendous recognition, because mutations in the lamin A gene,

8p galaxyss3 21-03-2013 22 3   Download

Solar cells are most commonly made from silicon, the same material used to make computer chips. Silicon is one of the Earth’s most common elements, and is a major component of sand and many kinds of rocks. A solar cell is built like a sandwich, with two layers of silicon separated by a thin layer of insulating material. All three layers work together to convert sunlight into electricity. When sunlight falls onto the solar cell, it produces a small electric charge. Like a battery, the charge is positive on one side of the cell, and negative on...

6p nhacnenzingme 23-03-2013 26 3   Download

The top layer of skin is the epidermis. The epidermis is thin, averaging only 0.2 millimeters thick (about 1/100 of an inch). It protects the deeper layers of skin and the organs of the body from the environment. Keratinocytes are the main cell type of the epidermis. These cells make an important protein called keratin that helps the skin protect the rest of the body. The outermost part of the epidermis is called the stratum corneum. It is composed of dead keratinocytes that are continually shed as new ones form. The cells in this layer are called squamous cells...

0p khongmuonnghe 07-01-2013 27 2   Download

In this paper, we report the development of the spray pyrolysis technique for preparing different nanostructure materials toward the application in thin film solar cells. The spray pyrolysis system can heat up the substrate to 600˚C with less than 0.01% full scale. The ramping rate can be set to 10˚C per minute. The effective coating area can be up to 100×100 mm2 . Using this technique, the thickness and roughness of the films can be controlled.

7p thuyliebe 09-10-2018 4 0   Download

Rosa heckeliana, as one of the wild-growing species of the family Rosacea, has a wide use in the folk medicine, scientifically there is very little known about it. Our objective was to examine the antioxidative and antiproliferative properties of Rosa heckeliana root extract and its phenolics.

18p nutifooddau 27-01-2019 5 0   Download