In October 2012, in a survey in order to study the flora of paddy fields and aquatic ecosystems of Gilan province (N Iran), we encountered an unknown species in “Aynak lagoon” in southeast of Rasht, covered surface of about 12 ha pond densely. Comparing the flora of pond with previous years or adjacent ponds showed that, the new weed was dominant in interference with natural flora of aquatic ec...

Should the mirid, Eccritotarsus catarinensis (Heteroptera: Miridae), be considered for release against water hyacinth in the United States of America? Julie A. Coetzee ab; Marcus J. Byrne a; Martin P. Hill b; Ted D. Center c a School of Animal, Plant and Environmental Sciences, University of the Witwatersrand, South Africa b Department of Zoology and Entomology, Rhodes University, Grahamstown, ...

The different controls of water hyacinth, an invasive species tropical and subtropical environ-ments, have demonstrated some limitations requiring additional monitoring tasks to maintain the ecological balance. Therefore, quantifying valuing this aquatic biomass becomes a sustainable management alternative. However, hyacinth estimation remains challenging task in developing countries with regar...

A themophilic cellulase-producing bacterium was isolated from a hot spring district and identified as Geobacillus sp. HTA426. The cellulase enzyme produced by the Geobacillus sp. HTA426 was purified through ammonium sulfate precipitation and ion exchange chromatography, with the recovery yield and fold purification of 10.14% and 5.12, respectively. The purified cellulase has a molecular weight ...

In this study bio-hydrogen and bioethanol were produced from dry biomass of water hyacinth by microbial fermentation under influence of zinc oxide nanoparticles. For fermentative bio-hydrogen production biomass was first pretreated and then saccharified into fermentable sugars by enzymes. Sugars of enzymatic hydrolysis were xylose and glucose with concentration of 9.0% and 8.0% respectively. Fo...

The recent interest in bioconversion of agricultural and industrial wastes to chemical feedstock has led to extensive studies on cellulolytic enzymes produced by microorganisms. In the present study three lignocellulosic substrates viz. sugarcane bagasse, sawdust and water hyacinth were pre-treated with alkali and enzyme and their effect on bioconversion has been investigated. The ability of se...

Water hyacinth (Eichhornia crassipes) is one of Indonesia's wild plants which considered a weed because its rapid growth that can cause environmental problems. Generally, water control carried out physically/conventionally by throwing it away or burning it, causing new has high organic matter content, therefore be used as an alternative feed to increase the production earthworms. This study aim...

The development of expressed sequence tags (ESTs) has provided a useful source for the mining of simple sequence repeat (SSR) markers. The hyacinth bean (Lablab purpureus L.) is one of the most ancient and important legume crops in the world, and is widely distributed in tropical and sub-tropical regions, but currently only limited molecular markers are available. The aim of the present study i...