Ecology as a process is shaped by biotic and abiotic influences. In some cases, a single type of chemical can have effects on an ecosystem, effects that are disproportionate to its relative mass, such that the ecosystem would organize differently in the absence of this type of chemical. The hallmark examples are those ‘‘molecules of keystone significance’’ (Ferrer and Zimmer 2012), such as the ...

Plant growth promoting rhizobacteria (PGPR) belonging to Pseudomonas spp. are being exploited commercially for plant protection to induce systemic resistance against various pests and diseases. Mixtures of di!erent PGPR strains have resulted in increased e$cacy by inducing systemic resistance against several pathogens attacking the same crop. Seed-treatment with PGPR causes cell wall structural...

The inherent reactivity of the Al–Cu alloys is such that their use for structural, marine, and aerospace components and structures would not be possible without prior application of a corrosion resistance system. Historically these corrosion resistance coatings were based on the use of chemicals containing Cr (VI) compounds. Silane coatings are of increasing interest in industry due to th...

We have studied the relation between the structure and the multidrug resistance-reversal activity of a set of diverse chemicals with the MULTICASE structure-activity program. A number of key structural features were identified as being related to multidrug resistance reversal activity. Using these key features, we identified seven new compounds predicted to have substantial activity. These were...