role of humic substances in rice and rice cell culture.

by Wen-Hua Wang

Publisher: University of Manchester in Manchester

Written in English
Published: Pages: 227 Downloads: 183
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Edition Notes

Thesis (Ph.D.), University of Manchester, School of Biological Sciences.

ContributionsUniversity of Manchester. School of Biological Sciences.
The Physical Object
Number of Pages227
ID Numbers
Open LibraryOL16749843M

INTRODUCTION Humic substances: Their definition. Humic substances have attracted the attention of soil chemists for over two centuries; in spite of intensive investigations, knowledge of the nature of . The role of humic substances as terminal electron acceptors in peatland decomposition Jason K. Keller Kimberly K. Takagi and Crisand Anderson. C X O 2 CO 2 C CO C C Fe3+ Iron Reduction SO 4 Carbohydrates play a central role in cell metabolism and are a primary product of photosynthesis. They belong to the most abundant organic compounds of terrestrial ecosystems and are used in chemical Author: Lea Lojkova, Valerie Vranová, Pavel Formánek, Ida Drápelová, Martin Brtnicky, Rahul Datta. Humic acid (HA) and poultry manure (PM) were applied on T. aman rice cv. BRRI dhan39 to observe their effects on rice. Three levels of humic acid viz. 0, 3 and 6 L ha -1 and three levels of poultry .

61 and plant nutrition (Varanini and Pinton, ). Plant pathologists have also hypothesized that humic 62 substances play a role in inducing resistance to various parasitic attacks, mainly in the form of soil File Size: KB. The Fulvic Acid Phenomenon. In plants, fulvic acid stimulates metabolism, provides respiration, increases metabolism of proteins and activity of multiple enzymes, enhances the permeability of cell . The study of soil humic substances is much older than the study of aquatic humic substances. Jöns Jakob Berzelius ( – ), a Swedish chemist and a professor of medicine and pharmacy, was File Size: 4MB. The formation of humic substances. The formation of humic substances is one of the least understood aspects of humus chemistry and one of the most intriguing. Studies on this subject are of long .

Plantago ovate is known as an important medicinal plant. The aims of the present research were the assessment of the salt induced changes in photosynthesis and yield of Plantago ovate as well as . Biotech rice with provitamin A (Golden Rice) has been develo25 and is being used to transfer beta carotene loci into high-yielding local commercial cultivars through marker-assisted back cross . P. Lin et al.: Humic-like substances in fresh emissions of rice straw burning ∼50km southwest to Guangzhou urban center. Once ev-ery 6 days, h PM sampling was conducted at TW and NS Cited by:

role of humic substances in rice and rice cell culture. by Wen-Hua Wang Download PDF EPUB FB2

Peat and aquatic humic acids covering a molecular mass range from approximat to 8, were found to stimulate the growth of rice calli and rice cells in suspension culture.

Humic substances and their role in the environment by Dahlem Workshop on Humic Substances and Their Role in the Environment ( Berlin, Germany),Wiley edition, in EnglishPages: Abiotic Stress Tolerance in Plants: Exploring the Role of Nitric Oxide and Humic Substances.

and rice) have reported that the application of these HS on the root area affected. An experiment was conducted to increase the quality of rice bran by fermentation using Bacillus amyloliquefaciens and humic substances and its utilization as a feed ingredient for broiler chickens.

Cited by: Content: Humic and fulvic acids and organic colloidal materials in the environment / Jeffrey S. Gaffney, Nancy A.

Marley, and Sue B. Clark --Micellar nature of humic colloids / T.F. Guetzloff and James A. (b) Gel filtration elution profile of 14C-WPHA1 in culture medium, initial concentration 25 ppm, after 35 days in rice cell culture.

Humic Substances and Rice Cells 2e+5, 15 0 14C-Activity (DPM) e Cited by:   Molecular Structure of Humic Substances. A focal point of this topic is to verify the existence of a relationship between structure and biological properties of HS.

29 So far the structure Cited by: Role of humic substances in promoting autotrophic growth in nitrate-dependent iron-oxidizing bacteria on the culturability, activity, and enumeration, of these microorganisms.

Pure culture studies Cited by: Role of humic acids (HA) in plant tissue culture as plant growth regulators has been reviewed. Humic acid is a principal component of humic substances, which are the most important organic constituents of.

The acidified humic acid was filtered and collected. The collected humic acid was dried The humic acid was purified several times by redissolving in KOH,centrifuging, acidifying, filtering, drying, and saving.

However, the present rate of rice production has slowed down in comparison to previous decades due to various biotic and abiotic stresses. Numerous biotechnological initiatives and Cited by: 1. What Humic Substances Do in the Soil Scientists claim organic substances stimulate plant cellular growth and division, including auxin type reactions.

They enhance plant circulatory systems and promote. Dissimilatory iron-reducing bacteria (DIRB) are known to use humic substances (HS) as electron shuttles for dissimilatory iron reduction (DIR) by transferring electrons to HS-quinone moieties, which in turn Cited by: The Interaction between Humic Substances and Metals, Depending on Structure and Properties of Humic Substances.

Diana Dudare1, Maris Klavins1 1 Faculty of Geography and Earth Sciences, University Cited by: 3. Humic substances (HS) have been widely recognized as a plant growth promoter mainly by changes on root architecture and growth dynamics, which result in increased root size, branching Cited by: humic substances to the fertility of soils and the stabilization of nitrogen has been well documented.

One study done by a science team from West Texas A&M University and the USDA-ARS demon-strated. Humic substances are organic compounds that are important components of humus, the major organic fraction of soil, peat, and coal (and also a constituent of many upland streams, dystrophic lakes, and.

The pots were filled with soil only in C1 and C2. For CHS1, CHS2, and CHS3, soil was mixed thoroughly with different rates of crude humic substances (20, 40, and 60 g pot −1) according to the Cited by: 1. In such case, when the flocculation of humic acids is performed, the supernatant liquid appears to be rich in (NH 4) 2 SO 4 and in humic compounds non-flocculated under the working.

Humic substances are considered as the most important constituents of soils. They form the largest fraction of soil organic matter and play a dominant role in improving soil productivity.

Humic. Humic Substances in the Global Environment and Implications on Human Health [Senesi, N., Miano, T.M.] on *FREE* shipping on qualifying offers. Humic Substances in the Global. Humic Substances in Biological Agricultural Systems Introduction by Gary Zimmer Author of The Biological Farmer & President, Midwestern Bio-Ag Organic matter, compost, humus, humates, humic File Size: KB.

Non-humic substances formed during organic matter decomposition probably play a more important role than do humic compounds in the mineralization of N and S as well as in the solubilization of iron and.

Humic acid (HA) derived from rice straw decomposed for 1 (HA-1), 3 (HA-3), 6 (HA-6) and 12 (HA) months was characterized by potentiometric titration and solid-state cross-polarization magic-angle Cited by: 2. varietal differences in rice cell culture In a liquid cu lture for suspension culture, 2 kinds of basal media, N6s, and R21s1, arc widely used in combina Lion with 2,4-D, sucrose, proli11c, etc.

Both media Cited by: 7. Dual Role of Humic Substances As Electron Donor and Shuttle for Dissimilatory Iron Reduction. Humic substances play an important role in soil fertility and crop yield. This article provides a basic overview of what humic substances are, how they are created, and how they work.

Discussion is File Size: KB. The Value of Humic Substances in the Carbon Lifecycle of Crops: Humic Acids, Fulvic Acids, and Beyond. By Larry Cooper, with Rita Abi-Ghanem, PhD. Everyone who works in agriculture is aware of File Size: KB. humic fraction caused an increase in carrot cell growth similar to that induced by 2,4-dichlorophenoxyacetic acid (2,4-D) and promoted morphological changes similar to those induced by.

Effects of Humic Acid in Agriculture An Overview of Literature and a Review of Current Research INTRODUCTION Humates are an accessible raw material that can be used in agriculture. Humates File Size: KB. furnish an optimum level of humic substances. Different humic substances showed different degrees of stimulation of algal growth, with the most stimulation from a mixture of humic and fulvic acids.

Humic .Humic Substances and Their Potential for Improving Turfgrass Growth Richard J. Cooper, Ph.D. Department of Crop Science, North Carolina State University O ne aspect of turfgrass management File Size: 1MB.Keywords: Rice bran, Casein, Thermal treatment, C/N ratio, Humic acid, Degree of humification Introduction During the maturation of compost, proteins, polysaccharides and lignins in organic raw .