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  3. Botany

Blattfenster

English translation: stomates?

20:21 Jun 1, 2003
German to English translations [PRO]
Science - Botany / botany
German term or phrase: Blattfenster
I don't know if the term "leaf window" exists. It is a text on flora and fauna> Here is the sentence: "Der Baum saugt Wasser aus dem Boden mit seinen Wurzeln an und transportiert es nach oben, bis in die Blätter, wo ein Teil des Wassers über "Blattfenster" verdunstet.
NickWatson
Germany
Local time: 01:44
English translation:stomates?
Explanation:
Epidermis - the external layer (one cell thick) of cells covering the leaf surface. The cells form an extra-thick cell wall on their outer surface, onto which a water-repellent layer of cutin and waxes is secreted, restricting evaporation of water. To allow for gas exchange through this layer, the epidermis has openings called stomates. The stomate is a slit-like intercellular space between two specialized epidermal cells called guard cells which open and close the pore. While the stomates may occur on either surface of the leaf, they are usually more abundant on the lower epidermis, where hundreds of stomates commonly occur per square millimeter of leaf surface. The leaves of most woody plants have stomates only on the lower epidermis.


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Note added at 2003-06-01 20:50:35 (GMT)
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Transpiration begins with evaporation of water through the stomates (stomata), small openings in the leaf surface which open into air spaces that surround the mesophyll cells of the leaf. The moist air in these spaces has a higher water potential than the outside air, and water tends to evaporate from the leaf surface. The moisture in the air spaces is replaced by water from the adjacent mesophyll cells, lowering their water potential.

http://www.sc2000.net/~czaremba/aplabs/trans.html
Selected response from:

Kim Metzger
Mexico
Local time: 17:44
Grading comment
Graded automatically based on peer agreement.
4 KudoZ points were awarded for this answer



Summary of answers provided
3 +2stomates?
Kim Metzger
4window leaves, lamina
Rainer Chatterjee
3window leaves (if this is a desert plant or xerophyte)
Dirgis (X)


  

Answers


16 mins   confidence: Answerer confidence 4/5Answerer confidence 4/5
window leaves, lamina


Explanation:
lamina- heißt auf Deutsch Blattfläche, aber ich habe auch auf dieser Website den Ausdruck window leaves gefunden. Ich denke du kannst beides verwenden.
Viel Glück


    Reference: http://serc.fiu.edu/periphyton/jrwebpage/bot3353,lec13.htm
Rainer Chatterjee
Local time: 01:44
Native speaker of: Native in GermanGerman
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25 mins   confidence: Answerer confidence 3/5Answerer confidence 3/5 peer agreement (net): +2
stomates?


Explanation:
Epidermis - the external layer (one cell thick) of cells covering the leaf surface. The cells form an extra-thick cell wall on their outer surface, onto which a water-repellent layer of cutin and waxes is secreted, restricting evaporation of water. To allow for gas exchange through this layer, the epidermis has openings called stomates. The stomate is a slit-like intercellular space between two specialized epidermal cells called guard cells which open and close the pore. While the stomates may occur on either surface of the leaf, they are usually more abundant on the lower epidermis, where hundreds of stomates commonly occur per square millimeter of leaf surface. The leaves of most woody plants have stomates only on the lower epidermis.


--------------------------------------------------
Note added at 2003-06-01 20:50:35 (GMT)
--------------------------------------------------

Transpiration begins with evaporation of water through the stomates (stomata), small openings in the leaf surface which open into air spaces that surround the mesophyll cells of the leaf. The moist air in these spaces has a higher water potential than the outside air, and water tends to evaporate from the leaf surface. The moisture in the air spaces is replaced by water from the adjacent mesophyll cells, lowering their water potential.

http://www.sc2000.net/~czaremba/aplabs/trans.html



    Reference: http://www.howe.k12.ok.us/~jimaskew/botleaf.htm
Kim Metzger
Mexico
Local time: 17:44
Native speaker of: Native in EnglishEnglish
PRO pts in category: 85
Grading comment
Graded automatically based on peer agreement.

Peer comments on this answer (and responses from the answerer)
agree  Ursula Peter-Czichi: Stomata = Poren (in German). There are certain (old) plant, e.g. ferns, with leaf fenestration (fenestrae).
44 mins
  -> Thanks for the confirmation, Ursula.
agree  John Hayward
11 hrs
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1 day 6 hrs   confidence: Answerer confidence 3/5Answerer confidence 3/5
window leaves (if this is a desert plant or xerophyte)


Explanation:
"Window leaves-are common in many desert plants, are shaped like tin ice-cream cones and grow mostly underground, with only a small transparent "window" tip protruding above the soil level." (link 1)
Window leaves are found in dessert plants. Most of the leaf is underground, ice cream-cone shaped with a small clear "window" above ground that allows the light to the underground leaf, see figure 14.24b on page 325."" (link 2)

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Note added at 2003-06-03 03:20:00 (GMT)
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Here are some more links and quotes supporting Rainer\'s suggestion.
I have to admit I never heard of these, even though I studied botany.


    Reference: http://www.cartage.org.lb/en/themes/Sciences/BotanicalScienc...
    Reference: http://www.cc.edu/~jclausz/botany/Stems+Leaves.html
Dirgis (X)
United States
Local time: 19:44
Specializes in field
Native speaker of: German
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