Root fragment

This paper presents findings of a series of experiments on seed emergence and regrowth from root fragments of Rumex crispus and Rumex obtusifolius. R. crispus and R. obtusifolius gave 100% emergence in the growth cabinet either from seed or root fragments weighing 2.5 g or 5 g.

6p schindler 30-12-2021 5 0   Download

The potential genotoxicity of cola- containing soft drink was investigated by Vicia faba assay. Root tips were treated with different concentrations of the cola- containing soft drink (100% and 50%) at 24 hours exposure. The concentration exposure affected the mitotic division in root tip cells and produced various chromosomal aberrations. The abnormalities scored were, bridges, fragments, lobulated nuclei, sticky metaphase and sticky anaphase. Exposure to soft drinks inhibited the cell cycle in a concentration dependent manner.

5p trinhthamhodang11 27-04-2021 6 1   Download

The abnormalities noticed were both physiological and clastogenic. Fragments, stickiness of chromosomes, univalents, multivalents, and anaphase bridges were the most frequent abnormalities. The decrease in seed germination and pollen fertility was found significant at 0.05 level.

8p vibasque27 27-03-2019 15 0   Download

Roseroot (Rhodiola rosea L.), an adaptogenic herb, has received increased attention in recent years. The genetic diversity of roseroot was studied with simple sequence repeat (SSR) markers, which have not been widely used so far

6p sony2711 01-02-2019 19 2   Download

Fragments containing the internal transcribed spacer (ITS) ribosomal rDNA were amplified from Meloidogyne incognita, M. javanica, M. arenaria and M. hapla by polymerase chain reaction (PCR).

5p aquaman27 15-01-2019 16 1   Download

The roots of this book stemmed from a reference that I chanced upon in an issue from 1841 of the Victorian newspaper Bell’s Life in London. I was interested in Victorian chess and as Bell’s contained one of the earliest and most informative chess columns from the period, it was a natural source for me to consult. However, the fragment that caught my eye, tucked away at the very bottom of the chess column, had nothing to do with the ‘royal game’ – as chess’s advocates were inclined to title it, but rather to what would later become known as ‘the beautiful game’ – football....

314p bunmang_1 04-05-2013 50 4   Download

A cDNA library from tobacco inoculated withRhizoctonia solaniwas con-structed, and several cDNA fragments were identified by differential hybridization screening. One cDNA clone that was dramatically repressed, NtKTI1, was confirmed as a member of the Kunitz plant proteinase inhibi-tor family. RT-PCR analysis revealed that NtKTI1was constitutively expressed throughout the whole plant and preferentially expressed in the roots and stems.

13p viettel02 19-02-2013 31 2   Download

Although there have been clear improvements in the delivery of specific health services, many of the systemic problems facing the U.S. child health system seem intractable and resistant to incremental reform strategies. Both the 1981 report of the Select Panel for the Promotion of Child Health and the 1991 report of the Na- tional Commission on Children highlighted numerous system-level problems re- lated to fragmented programs, disjointed and inadequate funding streams, inade- quate performance monitoring, and the lack of a coherent planning framework.

10p connicquy 14-12-2012 51 4   Download

Key governance challenges include institutional and territorial fragmentation and poorly managed multi‑level governance. Limited capacity at the local level, unclear allocation of roles and responsibilities and questionable resource allocation are also problematic. This is often reflected in patchy financial management and the lack of long‑term strategic planning, together with weak economic regulation and poorly drafted legislation. Insufficient means for measuring performance have contributed to low accountability and transparency.

0p lulaula 25-10-2012 38 2   Download

This review of the environmental effects of freight is structured by transport mode, addressing shipping, air cargo, trucking, rail, pipelines and intermodal terminals. It begins with a brief overview of the major environmental media or mechanisms through which transport can affect the environment. These include air pollution, global climate concerns, noise, water pollution, accidents, land use and habitat fragmentation.

35p yeurauxanh88 28-09-2012 75 4   Download

More discrete sequence alterations rely heavily on the use of the PCR, which allows rapid gene amplification and analysis. Moreover, PCR makes it possible to perform genetic testing and mutational analysis with small amounts of DNA extracted from leukocytes or even from single cells, buccal cells, or hair roots. Screening for point mutations can be performed by numerous methods (Table 62-9); most are based on the recognition of mismatches between nucleic acid duplexes, electrophoretic separation of single- or double-stranded DNA, or sequencing of DNA fragments amplified by PCR.

10p konheokonmummim 03-12-2010 64 2   Download

252 Chapter 11 Framework Components All the methods we use in this class are static methods. The methods you will probably be using most are the relative URI methods, and they are shown in Listing 11.1. Listing 11.1 Java Relative URI API static java.lang.String getRelativeUri(java.lang.String path) static java.lang.String getRelativeUri(java.lang.String path, boolean encode) static java.lang.String getRelativeUri(java.lang.String path, java.util.Map queryParams) static java.lang.String getRelativeUri(java.lang.String path, java.util.Map queryParams, java.lang.

10p yukogaru14 30-11-2010 50 4   Download