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Old 12-05-2012, 08:31 AM   #1 (permalink)
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Default Are banana pseudostems, petioles, green fruit capable of photosynthesis?

I am kind of curious. I know that the leaves of a banana are the main (and perhaps only) source of photosynthesis. However, since a banana pseudostem is green at times as are the petioles and banana fruit, I wonder if they are capable of photosynthesis if only to a small degree. I tried to research this via the internet, but I couldn't find a straight forward answer.
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Old 12-05-2012, 08:41 AM   #2 (permalink)
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Default Re: Are banana pseudostems, petioles, green fruit capable of photosynthesis?

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Old 12-05-2012, 09:08 AM   #3 (permalink)
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Default Re: Are banana pseudostems, petioles, green fruit capable of photosynthesis?

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Thanks for the response. The video does not answer my question. I don't want to know HOW photosynthesis occurs. I want to know IF the petioles, pseudostem, and banana fruit MIGHT contain chlorophyll, chloroplasts, the thylakoid membrane, and therefore be capable of some degree of photosynthesis.

It seems logical to me that plants have leaves which give them greater surface area to trap light and carry out photosynthesis. BUT do other parts of the banana that have less surface area but are still green capable of some degree of photosynthesis?
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Old 12-05-2012, 09:12 AM   #4 (permalink)
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Default Re: Are banana pseudostems, petioles, green fruit capable of photosynthesis?

Photosynthesis takes place primarily in plant leaves, and little to none occurs in stems, etc.


Photosynthesis
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Old 12-05-2012, 09:16 AM   #5 (permalink)
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Default Re: Are banana pseudostems, petioles, green fruit capable of photosynthesis?

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Photosynthesis takes place primarily in plant leaves, and little to none occurs in stems, etc.


Photosynthesis
Got it! Thank you. ;-)
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Old 12-05-2012, 12:31 PM   #6 (permalink)
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Default Re: Are banana pseudostems, petioles, green fruit capable of photosynthesis?

Yes, any green portion of the plant will be photosynthesizing, but the overal contribution to the plant compared to the leaves is minor.
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Old 12-05-2012, 12:57 PM   #7 (permalink)
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Default Re: Are banana pseudostems, petioles, green fruit capable of photosynthesis?

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Yes, any green portion of the plant will be photosynthesizing, but the overal contribution to the plant compared to the leaves is minor.
This is why I clean away anything brown from the pseudostems especially on plants with fruit bunches that need all the help they can get to fill and ripen. I'll also remove leaves and sometime whole plants to get more sun on plants with bunches, especially in the winter when the sun is low in the sky.
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Old 12-05-2012, 01:06 PM   #8 (permalink)
 
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Default Re: Are banana pseudostems, petioles, green fruit capable of photosynthesis?

Любые части растения, содержащие хлорофилл, способны к фотосинтезу. Некоторые орхидеи, например, Phalaenopsis, имеют хлорофилл в воздушных корнях, и они способны к фотосинтезу.А орхидея Chiloschista из той же трибы не имеет листьев и их функцию выполняют зеленые воздушные корни.
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Old 12-05-2012, 01:15 PM   #9 (permalink)
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Default Re: Are banana pseudostems, petioles, green fruit capable of photosynthesis?

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Любые части растения, содержащие хлорофилл, способны к фотосинтезу. Некоторые орхидеи, например, Phalaenopsis, имеют хлорофилл в воздушных корнях, и они способны к фотосинтезу.А орхидея Chiloschista из той же трибы не имеет листьев и их функцию выполняют зеленые воздушные корни.
Translated by google:

Any parts of plants that contain chlorophyll, are capable of photosynthesis. Some orchids, like, Phalaenopsis, have chlorophyll in aerial roots, and they are able to fotosintezu.A Chiloschista orchid from the same tribe has no leaves and their function is performed by green aerial roots.
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Old 12-05-2012, 03:06 PM   #10 (permalink)
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Default Re: Are banana pseudostems, petioles, green fruit capable of photosynthesis?

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Yes, any green portion of the plant will be photosynthesizing, but the overal contribution to the plant compared to the leaves is minor.
Thank you! I suspected that green portions of the plant might be able to photosynthesize. I noticed that when I remove old sheaths from the pseudostem of my banana, they turn from a pale creamy red to green.
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Old 12-05-2012, 06:28 PM   #11 (permalink)
 
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Default Re: Are banana pseudostems, petioles, green fruit capable of photosynthesis?

Well I tend to disagree with the majority opinion here:

Any part of a plant, which is green contains chlorophyll. And where there is chlorophyll, there is
photosynthesis. However, I do agree, that the impact of it in other parts is negligible in comparison
to the true solar panels, the leaves.




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Old 12-05-2012, 07:01 PM   #12 (permalink)
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Old 12-06-2012, 12:47 AM   #13 (permalink)
 
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Default Re: Are banana pseudostems, petioles, green fruit capable of photosynthesis?

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Originally Posted by sunfish View Post
Photosynthesis takes place primarily in plant leaves, and little to none occurs in stems, etc.
Keep in mind that the pseudostem of bananas is not actually a true stem (hence the name) -- it is made of leaf sheaths -- which will photosynthesize. The actual stem of the banana is the thing the inflorescence (and bunch) is on.
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