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
Irving Tissue Irving Tissue Irving Tissue Company Limited is a tissue products producing company, owned by J.D. Irving Limited. It has manufacturing locations in both Canada and the United States. Irving Tissue was started in 1988 in Saint John, New Brunswick after J.D. Irving acquired a tissue paper mill from Kimberly-Clark in the city's west side (adjacent to Irving Pulp and Paper). Irving began producing tissue for a new subsidiary that was located in Moncton, N.B. and was sold under the marketing name Majesta. In 1990, J.D. Irving opened a tissue converting plant for Majesta in Dieppe, New Brunswick that would make