30. The diagram below shows the movement of substances in a plant.一Leaves Substance X Substance Y Transported by P Transported by Q Substance X Substance Y Roots(a)(i) Identify tubes P and Q in the stem of the plant.1P: Water carrying tube /xylem Q: Food carrying tube /phloem(b)(...
A detailed knowledge of the chemical nature of the substances transported in the sieve tubes of angiosperms or their analogs in other groups of the plant kingdom is of special interest in several respects:...
Changes in fluxes of cyiokinins in exudates transported via the xylem from roots of rice plants cvs. Nipponbare (a standard Japanese cultivar) and Akenohos... Soejima,Hiroshi,Sugiyama,... - 《Plant & Cell Physiology》 被引量: 104发表: 1995年 Cytokinins in the root pressure exudate of Citru...
High-affinity potassium transporter (HKT) family members recover Na+from the xylem to reduce its transport or accumulation in the shoot. It has also been reported that HA promoted the activity of HKT1 transporters helpingArabidopsisto survive salt effects [111]. However, a large part of the mac...
Step-by-Step Solution:1. Identify the Types of Substances: In flowering plants, several types of substances need to be transported for their growth and survival. These include: - Water - Mineral nutrie