Novel techniques have revealed a number of unexpected cell- and molecular-biological properties of the sieve tubes. Thus far, the phloem system has been known for the translocation and …

Phloem (/ ˈfloʊ.əm /, FLOH-əm) is the living tissue in vascular plants that transports the soluble organic compounds made during photosynthesis and known as photosynthates, in particular …

2022年7月11日 · Multiple mutations in CLE-, BAM- or CIK-class genes caused ectopic formation of SEs and CCs, producing an SE/CC cluster at each phloem region. We propose that while …

2012年3月27日 · New developments in bioimaging have vastly enhanced our ability to study the phloem. Unexpectedly, in vivo studies challenge the pressure-flow hypothesis once again. In …

韧皮部装载(phloem loading)是指光合同化物从叶肉细胞运出至最终进入筛管的整个过程，而筛分子装载特指同化物从韧皮部薄壁细胞进入SE—CC复合体的过程。

2012年8月28日 · Sieve element-companion cell complexes (SE-CCs), organized into repeating units (sieve tubes), are structurally and functionally designed to support large fluxes of …

韧皮部由 初生韧皮部筛管 （protophloem sieve element, PES）和 次生韧皮部筛管 （metaphloem sieve element, MES），以及其紧临的两个 伴胞细胞 （companion cell, CC）组成（图1）。 …

The phloem tissue consists of two cell types, sieve element (SE), responsible for nutrient conduction, and companion cell (CC), which provides metabolic support for the SE [82]. …

The phloem is composed of serially arranged sieve-element-companion-cell (SECC) complexes that both conduct sap and control the exchange of solutes in accordance with the …

2019年3月4日 · Highly specialized and enucleated sieve elements (SEs) build connected sieve tubes and serve as functional transport units. SEs are supported by companion cells (CCs) …