Why did it grow 'striped' ?

[eve]

Can anyone explain to me how these stripes formed?
Sorry for this very basic question...

[Carlo & Daniele]

It could be related to sunlight...but in this case the stripes are very regular  , could you please post a pic af the plant?

thanks

[eve]

It grows in a greenhouse in Northern Italy and was the only one of that Astro collection to be that striped.
I found it rather peculiar but then I am no expert!

[fanecchissimo]

it is possible in hybryds of onzuka/whyte myrio with nudum myrio... but this one is nice anyway!=)

[Simon]

It is very nice and interesting too!  Maybe the making of  a  new cultivar?
Could it be the stripes were caused by variations in growth during different seasons as a response to heat or strong light? Maybe each white and green line represents a year's growth..

[eve]

@ C&D: It's difficult to believe that it depends on light, this is the only plant among many others that grow normal.


@ fanecchissimo: Have you see any similar ones around?


@ Simon: I thought also that it could be the annual growth, but then why the change? I don't think that it is a new cultivar but will enquire sometime 

[fanecchissimo]

seen some, yes. not as marked as this, but seen some. but i never buyed them,because i like most working with pure lines, and those looks really like hybrids. it depends on sun too a lot, as C&D told you. it could be that the plant is not in complete rest during winter and it develops some stripes, in fact i always leave in the same place white plants, because if you move them, thay can change a lot! =) hope it helps.

[eve]

... it depends on sun too a lot, as C&D told you. it could be that the plant is not in complete rest during winter and it develops some stripes, in fact i always leave in the same place white plants, because if you move them, thay can change a lot! =) hope it helps.

yes, it does! but i wonder whether the plant would not be a bit etiolated, if it grew also in winter...

[AstrophytumCultivars.com]

seen some, yes. not as marked as this, but seen some. but i never buyed them,because i like most working with pure lines, and those looks really like hybrids. it depends on sun too a lot, as C&D told you. it could be that the plant is not in complete rest during winter and it develops some stripes, in fact i always leave in the same place white plants, because if you move them, thay can change a lot! =) hope it helps.

I don't think that this is a matter of light, because plant looks very compact, and if it would not have a light it would grow like "totem" (or. looked like f.columnare). I just have to say : "Big up !"

[eve]

i agree with you ToKra 

[Carlo & Daniele]

actually i do not know exactly the reason of this growth, but light influences a lot the distribution of trichomes on the plant.
You can notice it putting some onzuka in full sun or keeping them in the shade...

daniele

[eve]

...distribution of trichomes on the plant...

do you mean distribution i.e. less spots, or are they smaller or even absent?

[fanecchissimo]

in some nudal forms you can obtain stripes putting them to full sun for some months. but they are usually hybrids.
the same is the process C&D just told you... they can vary in density, dimension and "wool"...

@eve: why should a plant growing in winter be etiolated? the metabolism of the plant would be slower and the plant would grow a little without direct summer sunlight.
i have 50% shading in summer, but my plants are not etiolated.. this is because plants (even CAM ones) have a better metabolism in certain light exposures.

anyway this is not a bad form, just nothing never seen...