Sap transport proteins. Recent evidence indicates that mobile proteins and RNA are part of the plant's long-distance communication signaling system. Evidence also exists for the directed transport and sorting of macromolecules as they pass through plasmodesmata." A large number of insects of the order Hemiptera (the half-wings), feed directly on phloem sap, and make it the primary component of their diet. Phloem sap is "nutrient-rich compared with many other plant products and generally lacking in toxins and feeding deterrents, [yet] it is consumed as the dominant or sole diet by a very restricted range of animals". This apparent paradox is explained
SAP Business Connector version independently: SAP (who had acquired the full core Integration Server source code) started developing SAP BC 4.7, while webMethods began work on wM IS 6.0. Of course the component that changed most in SAP BC 4.7 was the "SAP Adapter", which got enhanced IDoc processing capabilities and performance improvements in the RFC communication layer. However, SAP also enhanced selected components of the core Integration Server, e.g. the job scheduler, the "Reverse Invoke" feature and the WmPartners package, which was completely redesigned. SAP tried to do these core enhancements in a backward compatible way, the only exception being the WmPartners