für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Drought is one of the complex environmental factors affecting growth and yield of sorghum in arid and semi-arid areas of the world. Developing crops that have the mechanism to cope with such drought prone production environments is vital. Callus culture is a novel approach addressing cultured cells as selection units independent of whole plant. In vitro culture of plant cells and tissue has attracted considerable interest over recent years because it provides the means to study plant physiological aspects and genetic processes in addition to offering the potential to assist in the breeding of improved cultivars by increasing genetic variability.For in vitro drought stress induction, one of the most popular approaches is to use high molecular weight osmotic substances, like polyethylene glycol (PEG). This book, therefore, provides a new perspective of efficient and rapid screening method with special emphasis to callusing, callus growth, plant regeneration and growth performance of in vitro regenerated plantlets of sorghum genotypes under induced drought conditions. ····· 10361840
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Drought is the most common adverse environmental condition that can seriously reduce crop productivity. Increasing crop resistance to drought stress would be the most economical approach to improve agricultural productivity and to reduce agricultural use of fresh water resources. As a result, understanding the drought tolerance and breeding for drought resistant crop plants has been the major goal of plant breeders. Sorghum is well-known for its capacity to tolerate conditions of limited moisture and to produce during periods of extended drought. Twenty sorghum (Sorghum bicolor L. Moench) genotypes with known drought tolerance traits were used in this study. The present study will be conducted to evaluate the genetic variability for drought tolerance in sorghum genotypes at molecular level. ····· 10361771
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray DNA replication complexes assembled at origins of replication are intrinsically highly processive. However, their progression is often hindered by lesions in or on the DNA. There is growing evidence that RNA polymerase stalled itself at a lesion in the template strand is a major obstacle, especially in UV-irradiated cells. The data presented in this book provide information and propose model on how modulation of RNA polymerase activity might enable UV-irradiated cells lacking RuvABC to overcome obstacles caused by the stalling of RNA polymerases at UV-induced DNA lesions. The proposed model for replication restart relies on PriA protein, but does not require RecBCD and thus does not proceed via recombination and Holliday junction resolution or even via processing of a DNA end by RecBCD. However, it does require the UvrABC excision repair pathway and RecG protein. The book describes studies indicating that in rpo cells, replication forks may run directly into lesions in DNA rather than into RNA polymerase stalled at lesions, and that this leads to direct fork rescue without recombination with the aid of SOS induction, which increases excision repair to remove lesions at other sites. ····· 10361455
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Cytogenetics is a branch of genetics that is concerned with the study of the structure and function of the cell, especially the chromosomes. It includes routine analysis of G-Banded chromosomes, other cytogenetic banding techniques, as well as molecular cytogenetics such as fluorescent in situ hybridization (FISH) and comparative genomic hybridization (CGH). The world has witnessed extraordinary advances in science over the last few decades. Biotechnology one such area of growth is a term covering a broad range of scientific activities used in many sectors, such as food, health and agriculture. It involves the use of living organisms or parts of living organisms to provide new methods of production and the making of new products. Cytogenetics is also defined as the study of chromosomes and how changes in their structure and number can relate to disease. Cytogenetic tests are often used in the diagnosis of genetic diseases and in prenatal diagnosis. The two major techniques used in cytogenetics are karyotyping and fluorescent in situ hybridization (FISH). ····· 10361407
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Water stress is one of the most significant factors among abiotic stresses that limit performance growth and productivity of crops. Among local hexaploid wheat, Rawal-87 performed well and also indicated lower SSI, TOL and MP values and higher value of YSI under all water stresses and can be considered as a tolerant variety. Bread wheat advanced lines CIM-47 and CIM-50 were the most tolerant genotypes against water stress and also showed lowest SSI,TOL and MP with high YSI values. It may therefore, be concluded that these genotypes have the potential of stress tolerance. Considering the biochemical parameters, minimum MDA contents with higher POD activity has been found in Rawal-87, Chakwal-86 and Pak-81 when stress was imposed at different irrigation levels. CIM-47, CIM-49 and NR-234 showed minimum levels of MDA with increased POD activity under different stress conditions and are considered as tolerant genotypes. Higher sugar contents have been noticed in genotypes CIM-47, CIM-51, NR-234, NR-241 and NR-264. These results led to conclude that higher reducing sugar content in tolerant genotype could be use as a distinguishing parameter. ····· 10361375
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray A sustainable improvement in jute productivity under less favourable environment can only be achieved with a constant flow of new genetic materials. The existing variability for constraints, like insect-pest and diseases, poor soil fertility, water stress, fiber quality, photo-insensivity etc. is a serious issue that needs to be addressed . It is evident that all the tissue culture techniques play a vital role in the enrichment of genetic variability. Among the phytohormone combination, MS+ 2 mg/l BAP + 0.5 mg/l IAA showed the highest shoot regeneration (60.66%). The variety CVE-3 response better than O-72 towards shoot regeneration at different pH level. Among the sucrose concentration 3% (30mg/l) showed the highest shoot regeneration (87.49%). Among the different concentration of vitamins x2 times (3.0mg/l) showed the highest shoot regeneration. Using different concentration of surfactant 0.1% surfactant showed the highest shoot regeneration (91.663%). In the NaCl experiment, among the three varieties CVE-3 was found highly responsive to shoot regeneration (97.22%) and 0.125, 0.25 and 0.50 (%) NaCl shows the better responsive to shoot regeneration. ····· 10361334
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Mungbean (Vigna radiata L.) is one of the important legumes and a well-known economic crop in tropical and subtropical countries. It belongs to the family Leguminosae with diploid chromosome number 2n = 2x = 22. (Smart 1990).and is native to Indo-Burma (Myanmar) region of Asia. The primary gene center of diversity for mungbean was suggested to be the central Asian region (Vavilov, 1951) with India as the gene center and probable center of domestication (Smartt, 1985).So India is considered as its land of origin (Loh and Stacey, 2003). It has several synonyms like greengram, moong, goldengram, oregon pea, chickasono pea, chickasaw pea and chiroko It is short-stature, less than 1.25 m, depending on the variety and growing conditions (Watt et al. 1977). It is a pulse or food legume crop used primarily as dried seed and occasionally as forage or green pods and seeds for vegetables (Lawn 1995). On a dry-weight basis it contains 25 to 28% protein, 1.0 to 1.5% fats, 3.5 to 4.5% fiber, 4.5 to 5.5% ash and 60 to 65% carbohydrate (Lawn and Ahn, 1985). ····· 10361245
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The biopolymer poly-3-hydroxybutyrate (PHB) is a polyester produced by certain bacteria utilizing glucose, corn starch or wastewater nutrients. The characteristics of PHB are similar to those of petroplastic polypropylene. PHB produces transparent film at a melting point higher than 130 degree Celsius that is non toxic and biodegradable without residues, which reduce greenhouse gas emissions considerably. Currently, application of PHB is limited to medical science because of its higher production cost. Microbial biosynthesis of PHB starts with the condensation of two acetyl-CoA molecules into acetoacetyl-CoA, which is subsequently reduced to hydroxybutyryl-CoA. This latter compound is then used as a monomer to polymerize PHB. To explore the possibilities for maximum PHB production, this book has investigated E. coli metabolic regulations by inserting PHB synthetic genes and/or deleting glycolytic pathway genes together with changing their culture condition. Study results from proteomics, transcriptomics, measurement of key enzyme activities and metabolic flux analysis have been interpreted for better understanding of their complex genotype-phenotype relationship. ····· 1036143· 1 · ::::: · 6 ·· 7 ·· 8 ·· 9 ·· 10 ·· 11 ·· 12 · ::::: · 13 ·
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