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Full-Text Articles in Physical Sciences and Mathematics
Identification And Biosynthetic Study Of The Siderophore Lysochelin In The Biocontrol Agent Lysobacter Enzymogenes, Amanda Lynn Miller, Shanren Li, Catherine D. Eichhorn, Yongbiao Zheng, Liangcheng Du
Identification And Biosynthetic Study Of The Siderophore Lysochelin In The Biocontrol Agent Lysobacter Enzymogenes, Amanda Lynn Miller, Shanren Li, Catherine D. Eichhorn, Yongbiao Zheng, Liangcheng Du
Liangcheng Du Publications
Lysobacter is a genus of bacteria emerging as new biocontrol agents in agriculture. Although iron acquisition is essential for the bacteria, no siderophore has been identified from any Lysobacter. Here, we report the identification of the first siderophore, N1,N8-bis(2,3-dihydroxybenzoyl)spermidine (lysochelin), and its biosynthetic gene cluster from Lysobacter enzymogenes. Intriguingly, the deletion of the spermidine biosynthetic gene encoding arginine decarboxylase or SAM decarboxylase eliminated lysochelin and the antifungals, HSAF and its analogues, which are key to the disease control activity and to the survival of Lysobacter under oxidative stresses caused by excess iron. The production of …
A Review Of The Potential Of Fertility Control To Manage Brushtail Possums In New Zealand, Weihong Ji
A Review Of The Potential Of Fertility Control To Manage Brushtail Possums In New Zealand, Weihong Ji
Human–Wildlife Interactions
Brushtail possums (Trichosurus vulpecula) were introduced into New Zealand from Australia in the mid-1800s and became a major invasive pest. They damage native biodiversity by browsing and predation, and they are a disease risk to the livestock industry by acting as vectors of bovine tuberculosis (TB). Management of possums includes their eradication from some offshore islands and control by trapping, shooting, and poisoning on the mainland. Possums have been eradicated successfully from some islands and greatly reduced in abundance in other areas of high conservation value or where they are infected with TB. However, possums are still at …
Modeling Costs Of Using Ovocontrol G For Managing Nuisance Canada Goose (Branta Canadensis) Populations, Joe N. Caudell, Stephanie A. Shwiff
Modeling Costs Of Using Ovocontrol G For Managing Nuisance Canada Goose (Branta Canadensis) Populations, Joe N. Caudell, Stephanie A. Shwiff
USDA Wildlife Services: Staff Publications
OvoControl G is a relatively new product that reduces the hatchability of Canada goose (Branta canadensis) eggs. However, little data is available on the cost of application. We present a model for estimating the cost of application of OvoControl G for managing nuisance Canada goose populations. We found that at low goose densities, fixed labor costs are responsible for a significant portion of the cost. As goose densities increase, these fixed costs become equivalent to, and eventually less than, the costs associated with the purchase of the product. We present several scenarios that managers may employ to further …
Monk Parakeet Management At Electric Utility Facilities In South Florida, Michael L. Avery, Ellis C. Greiner, James R. Lindsay, James R. Newman, Stephen Pruett-Jones
Monk Parakeet Management At Electric Utility Facilities In South Florida, Michael L. Avery, Ellis C. Greiner, James R. Lindsay, James R. Newman, Stephen Pruett-Jones
USDA Wildlife Services: Staff Publications
The monk parakeet (Myiopsiirta monachus) is native to South America but has become established in several locations throughout the United States through purposeful and accidental releases. The species is unique among parrots in that it is not a cavity-nester, but instead it builds a bulky nest structure of sticks. Often, in its native range and in the United States, the parakeet selects a electric utility structure as a nest site. Material from the nest then can cause short-circuits that result in damage to the utility structure and a subsequent power outage. In south Florida monk parakeet damage and …