In addition to the products of photosynthesis, the phloem transports amino acids and various other substances essential for plant growth and metabolism.
Besides the products of photosynthesis, what other substances does the phloem transport?
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In addition to transporting products of photosynthesis, such as sugars (mainly sucrose), the phloem in plants also transports other essential substances. These include amino acids, which are the building blocks of proteins, and various hormones crucial for growth and development. Phloem sap may also contain organic acids, ions, and some signaling molecules. The transport of these substances is crucial for maintaining plant health, supporting metabolic processes, and coordinating growth and responses to environmental stimuli. The phloem’s role in long-distance transport within plants makes it a vital conduit for distributing nutrients and signaling molecules throughout the organism.