质外体途径

随着压力的升高，细胞壁空间含水量增大，质外体途径导度增大，减小甚至可以消除非结构阻力。

With pressure increasing , the water content in intercellular spaces increases , and consequently reduces non structural resistance in apoplastic pathway .

开始升压时，由于细胞壁空间含水量低，质外体途径阻力大，导致非结构阻力；

In the beginning of ascending pressure , the water content in intercellular spaces is low and apoplastic resistance is high , therefor results in non structural resistance .

芦荟素在叶的同化组织细胞的质体中合成，通过质外体途径转运到维管束鞘细胞，由其胞间连丝运送到大型薄壁细胞内贮存。

Aloin was produced in the plastids of the assimilating tissue , it reached the vascular bundle sheath by apoplastic endoplasmic , stored , finally in the large parenchymatous cells by means of plasmodesmata .

根据根的复合运输模型，这种差异可能是由于升压和降压过程中质外体运输途径的细胞壁空间充水程度不同造成的。

The possible cause , based on composite transport model of the root , is that the water content in intercelluar spaces increased with increasing hydrostatic potential between root surface and xylem and hence increased apoplastic water flow and root hydraulic conductivity .

药隔和药壁组织通过质外体或共质体途径运输Ca2+供给花粉的发育；

Calcium was transported in anther wall and intervening connective tissue via symplast and apoplast system , meeting the need of microspore and pollen development .