Hydrilla verticillata

Figure 2 Diagram of Hydrilla verticillata showing location from which apical meristens ("apical explants and "two-node" explants were excised.

The results presented here demonstrate that these approaches can be applied to Potamogeton sp. and Hydrilla verticillata. In both assay systems, typical responses to known plant growth regulators were observed in most cases. The unique response of P.nodosus to ABA however, clearly shows the importance of not relying solely on "classical" bioassays. 

Effect of Fluridone on 2-node Explants and Apical tips of Hydrilla verticillata exposed to different light levels3... 

Regarding submerged plants, sorption of Cu(II) by Myriophyllum spicatum L. (Eurasian water milfoil) has been shown to be fast and fits isotherm models such as Langmuir, Temkin, and Redlich-Peterson. The maximum sorption capacity (c/lll l j ) of copper onto M. spicatum L. was 10.80 mg/g, while the overall sorption process was best described by the pseudo-second-order equation.115 Likewise, Hydrilla verticillata has been described as an excellent biosorbent for Cd(II). In batch conditions, the qmsx calculated was 15.0 mg/g. Additionally, II. verticillata biomass was capable of decreasing Cd(II) concentration from 10 to a value below the detection limit of 0.02 mg/L in continuous flow studies (fixed-bed column). It was also found that the Zn ions affected Cd(II) biosorption.116... 

Bunluesin, S., Kruatrachue, M., Pokethitiyook, P., Upatham, S., and Lanza, G.R., Batch and continuous packed column studies of cadmium biosorption by Hydrilla verticillata Biomass, Journal of Bioscience and Bioengineering, 103 (6), 509-513, 2007. 

Binimelis R, Monterroso I, Rodriguez-Labajos B (2007) A social analysis of the bioinvasions of Dreissena polymorpha in Spain and Hydrilla verticillata in Guatemala. Environ Manage 40 555-566... 

No data are available on the toxicity of copper to avian wildlife. All studies with birds and copper use domestic chickens, ducks, or turkeys (Table 3.6). Copper, however, may indirectly affect avian wildlife by curtailing certain prey species. Winger et al. (1984), for example, show that apple snails (Pomacea paludosa) are not only extremely susceptible to copper (LC50 of 24 to 57 pg/L in 96 h immatures most sensitive), but are the primary food of the snail kite (Rostrhamus sociabilis), an endangered species. The decline of the apple snail in southern Florida coincided with the use of copper-diquat to control hydrilla aquatic weeds (Hydrilla verticillata), with serious implications for the snail kite (Winger et al. 1984). 

Certain emergent aquatic plants, especially hydrilla (Hydrilla verticillata) and duckweed (Lemna obscura), removed 97 to 98% of all soluble lead from solution in the vicinity of a lead battery site in Tampa, Florida, suggesting that phytoremediation may be feasible as the basis of a lead removal technology (Gallardo et al. 1999). 

Hinman, M.L., Klaine, S.J. (1992) Uptake and translocation of selected organic pesticides by the rooted aquatic plant Hydrilla verticillata royale. Environ. Sci. Technol. 26, 609-613. 

M. Evaluation of Fusarium roseum Culmorum as a biological control agent for Hydrilla verticillata Tech. Rep. A-84-5,... 

Figure 1. Mean daily yields of Eichhornia crassipes, Hydrilla verticillata, and Lemna minor throughout the year at Fort Pierce, Florida...

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