xylem sap 英[ˈzailem sæp] 美[ˈzaɪləm sæp] 释义 木质部汁液
However, xylem sap Ca concentration increased only in bean. Interestingly, the same was not true for the pea where the root xylem sap concentration remained unchanged despite an increase in soil available Ca. Given that stomatal conductance decreased in both species, but...
- The movement of xylem sap is largely unidirectional, meaning it only moves upwards. 2. Understanding Phloem Transport: - Phloem transports organic nutrients, particularly sugars produced during photosynthesis, from the leaves (source) to other parts of the plant (sink). - The movement of phloe...
sap n. 1.[U](树等的)液,汁 2.[U]精力,元气 3.[U](树皮和心材之间的)边材 4.[C]【美】【口】笨蛋 5.[C]【美】(中间灌铅的)橡皮棍 v. [T] 1.使大 SAP n. 树液,体液,活力,坑道,笨蛋 vt. 使排出体液,使衰竭,挖坑道袭击 sap. 【缩写】 =soon as possible 尽快 sap sample 汁状样...
Here, we report the occurrence of PCT-FNGs in the xylem sap of the stem of the tomato plant.Abbreviations: RP-HPLC: reversed-phase HPLC; SF-HPLC: size-fractionation HPLC; PA-: pyridylamino; PCT: plant complex type; Hex: hexose; HexNAc: N-acetylhexosamine; Pen: pentose; Deoxyhex: ...
Although the xylem sap is the primary source of minerals and N for growing regions in shoots, recirculation or recycling in the phloem also plays an important role in mineral nutrition (Fig. 3.13). Thus growing leaves may receive minerals from both the xylem and phloem. Continual movement of ...
Recent results indicate that the expression of xylem proteins can be highly regulated also by other factors than pathogen invasion. The root-specific expression of 30 kD xylem sap protein (XSP30), for example, is controlled by a circadian clock and shows diurnal fluctuations. This protein appears...
Xylem sap is low in nutrients, containing mostly inorganic compounds and minerals, as well as small amounts of non-essential amino acids (glutamate, aspartate), sugars (primarily glucose), and organic acids (primarily malate) (Redak et al., 2004). Among xylem-feeders, sharpshooters are a ...
Xylem and phloem are essential for the exchange of solutes and signals among organs of land plants. The synergy of both enables the transport and ultimately the partitioning of water, nutrients, metabolic products and signals among the organs of plants. The collection and analysis of xylem sap al...
aPhylum-level distribution of bacterial communities across the whole dataset. Proteobacteria are shown at the class level. BS: bulk soil; RS: rhizosphere soil; RE: root endosphere; VE: xylem sap; SE: stem endosphere; LE: leaf endosphere; P: phylloplane. BSA: black soils; FSA: fluvo-aquic...