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Phloem

Definition

noun

A tissue in a vascular plant that functions primarily in transporting organic food materials (e.g. sucrose) from the photosynthetic organ (leaf) to all the parts of the plant.


Supplement

Phloem is comprised of the following major components:
(1) sieve tube
(2) companion cell
(3) phloem fibers
(4) phloem parenchyma

The tissue is responsible for translocation, a process in plants responsible for transporting the photosynthate materials to all parts of a vascular plant.

Phloem may be classified into the following based on the stage or origin of growth:


Word origin: from the Greek phloos (bark)

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Results from our forum


Why does the floem gets affected when the bark gets damaged?

@Babybel56: *living cells yeah, the phloem is basically part of the bark, so whenever you damage the bark down to the wood, you're destroing also the phloem. However, phloem doesn't transport nutrients (and it definitely doesn't transport glucose) ...

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by JackBean
Fri Feb 28, 2014 3:15 pm
 
Forum: Botany Discussion
Topic: Why does the floem gets affected when the bark gets damaged?
Replies: 2
Views: 1480

Why does the floem gets affected when the bark gets damaged?

*phloem! The phloem cells are loving cells, whilst the xylem are formed of dead cells. The xylem are on the inside of the vascular bundles, and eventually are used to create the dead heartwood at the centre of the trees. This ...

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by Babybel56
Fri Feb 28, 2014 9:27 am
 
Forum: Botany Discussion
Topic: Why does the floem gets affected when the bark gets damaged?
Replies: 2
Views: 1480

Re:

... No two trees are the same shape, they do share a similar fractal organization, and specific structures (xylem, phloem, leaves, etc) are highly organized with tightly constrained shapes. Meanwhile, there is some definition to the shape of cyanobacteria, and organization ...

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by BlahBlahBlah
Thu Jun 27, 2013 1:46 pm
 
Forum: Microbiology
Topic: Multicellular prokaryote
Replies: 26
Views: 25430

Monocot leaf cross section

yeah, it should be the phloem/xylem orientation

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by JackBean
Sun Dec 02, 2012 6:42 pm
 
Forum: Botany Discussion
Topic: Monocot leaf cross section
Replies: 1
Views: 2694

Monocot leaf cross section

... Since monocot leaves don't have palisade tissue, and have stomata on both side, I'm wondering if the answer lies in finding the phloem? Thanks!

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by johntdlemon
Tue Nov 13, 2012 2:46 am
 
Forum: Botany Discussion
Topic: Monocot leaf cross section
Replies: 1
Views: 2694
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