RNA isolation is difficult in plants that contain large amounts of polysaccharides and polyphenol compounds. To date, no commercial kit has been developed for the isolation of high-quality RNA from tissues with these characteristics, especially for fruit. The common protocols for RNA isolation are tedious and usually result in poor yields when applied to recalcitrant plant tissues. Here an effi...

Isolation of high-quality RNA of Avicennia germinans L. tissue is difficult due to high levels of phenols and other substances that interfere when using conventional procedures for the isolation. These substances not only decrease the yield but also the quality of RNA is almost poor. We present here a simple RNA protocol and fast methodology that effectively removes these contaminating substanc...

Current RNA isolation methods have limitations in their ability to yield good quality and quantity of RNA from plants that have high content of phenols, polysaccharides and storage proteins. Existing methods also do not eliminate accompanying chromosomal DNA in RNA preparation that causes false positives in gene expression studies. Standard isolation technique was modified for rapid and quick e...

We evaluated and compared 2 mitochondrial DNA (mtDNA) extraction methods in terms of DNA quality and success of subsequent polymerase chain reaction (PCR) amplifications from yellow etiolated shoots of wheat crop (Triticum aestivum). mtDNA ex-traction is difficult because the presence of metabolites interfere with DNA isolation procedures and downstream applications such as DNA restriction, amp...

High quality DNA was isolated from Casuarina equisetifolia which is widely planted in tropics and subtropics for its multiple utilities. Two commonly used methods, CTAB based and the commercially supplied DNeasyTM Plant Mini Kit (QIAGEN GmbH, Germany) were tested for their efficiency in isolating high quantity and quality DNA to be utilized for AFLP analysis. The CTAB based protocol was modifie...

High molecular weight genomic DNA was isolated from excised marrow cotyledons (Cucurbita pepo L., zucchini) using high concentration of ethidium bromide (400 μg.ml–1) in the grinding buffer and phenol deproteinization of the crude nuclear pellet. This preparation of DNA was free of proteins but contained polysaccharide contaminations which did not allow complete digestion with a number of restr...

An attempt is made to improve the currently accepted muonic value for the 197Au nuclear quadrupole moment [+0.547(16)x10(-28) m2] for the 3/2+ nuclear ground state obtained by Powers et al. [Nucl. Phys. A230, 413 (1974)]. From both measured Mossbauer electric quadrupole splittings and solid-state density-functional calculations for a large number of gold compounds a nuclear quadrupole moment of...