scholarly journals Constitutive and Companion Cell-Specific Overexpression of AVP1, Encoding a Proton-Pumping Pyrophosphatase, Enhances Biomass Accumulation, Phloem Loading, and Long-Distance Transport

2015 ◽  
Vol 170 (1) ◽  
pp. 401-414 ◽  
Author(s):  
Aswad S. Khadilkar ◽  
Umesh P. Yadav ◽  
Carolina Salazar ◽  
Vladimir Shulaev ◽  
Julio Paez-Valencia ◽  
...  
Keyword(s):  
Biomass Accumulation ◽  
Phloem Loading ◽  
Proton Pumping ◽  
Companion Cell ◽  
Long Distance ◽  
Long Distance Transport ◽  
Distance Transport

scholarly journals Passive phloem loading and long-distance transport in a synthetic tree-on-a-chip

Nature Plants ◽  
2017 ◽  
Vol 3 (4) ◽  
Author(s):  
Jean Comtet ◽  
Kaare H. Jensen ◽  
Robert Turgeon ◽  
Abraham D. Stroock ◽  
A. E. Hosoi
Keyword(s):  
Phloem Loading ◽  
Long Distance ◽  
Long Distance Transport ◽  
Distance Transport

The Fine Structure of Phloem Cells

1985 ◽  
Vol 43 ◽  
pp. 632-635
Author(s):  
James Cronshaw
Keyword(s):  
Structural Studies ◽  
High Concentration ◽  
Long Distance ◽  
Phloem Tissue ◽  
Sieve Elements ◽  
Long Distance Transport ◽  
P Protein ◽  
Companion Cells ◽  
Electron Microscopical ◽  
Distance Transport

Long distance transport in plants takes place in phloem tissue which has characteristic cells, the sieve elements. At maturity these cells have sieve areas in their end walls with specialized perforations. They are associated with companion cells, parenchyma cells, and in some species, with transfer cells. The protoplast of the functioning sieve element contains a high concentration of sugar, and consequently a high hydrostatic pressure, which makes it extremely difficult to fix mature sieve elements for electron microscopical observation without the formation of surge artifacts. Despite many structural studies which have attempted to prevent surge artifacts, several features of mature sieve elements, such as the distribution of P-protein and the nature of the contents of the sieve area pores, remain controversial.

Sign in / Sign up

Export Citation Format

Share Document