There is no agreement, however, as to the tissue ... or xylem, and the phloem or bast. Usually, the sieve-tubes of the phloem have been regarded as the channels of sugar transport, as micro ...

Once in the xylem tissue, water moves easily over long distances in these open tubes (Figure 5). There are two kinds of conducting elements (i.e., transport tubes) found in the xylem: 1 ...

Vascular tissue in the midrib and veins Branches of the xylem, to transport water and minerals to the leaf. Branches of the phloem. To transport glucose and other products of photosynthesis to ...