Animal Pictures Archive mobile
질의: snail결과: 567번째/729
Protozoa - new scans, #2 - a hungry ciliate and its meal
제목: Protozoa - new scans, #2 - a hungry ciliate and its meal
올린이: Schmode (schmode@vossnet.de)
Protozoan-Ciliateeat-by Ralf Schmode.jpg
파일크기 : 61931 bytes File date : 2001:02:21 16:31:53 해상도: 800x637 Jpeg process : Baseline Posted Newsgroups: alt.binaries.pictures.animals Posted 촬영일: Sat, 08 Aug 1998 23:02:05 +0200

Protozoa - new scans, #2 - a hungry ciliate and its meal


Hello again,

sorry - this posting gets a little hard-disk expensive.

If you watch the first pic you'll recognize the typical appearance of a
member of the ciliate family. I don't know precisely which one because
there are no distinctive details such as location and form of the cilia,
of the vacuoles and the nucleus. This picture just shows three details:
The nucleus, a cut in the lower middle of the organism which is likely
to be the mouth, and a green barrel of substantial size all over the
organism.

This is what makes this shot a little special. The green barrel is a
diatomea, an alga covered with a solid coat of silicic acid. This one is
called Pinnularia; it is one of the biggest diatomeae that exist,
reaching about 1/50 of an inch in length - just as the ciliate pictured
here. The second shot shows a Pinnularia just to give you an impression
of what is happening here. The jagged shell of Pinnularia is clearly
visible; the little spheres in its cytoplasma, by the way, are oil drops
produced by the organism which enable it to not only search the water
depth being optimal for photosynthesis but - believe it or not - perform
active horizontal movement on solid ground by creeping on an oil track
like a snail. If you see an oil film on a still water in late spring it
is very likely to be produced by diatomeae rather than by pollution.

Diatomeae just have one weak spot. Having to go to cell duplication in
order to reproduce, the shell consists of two halves which can be
separated from each other like a cardboard cheese box. The gap between
the two halves makes the organism vulnerable, the cytoplasma being
accessible to digestive enzymes of hungry ciliates. So Pinnularia,
inrespective of its size and shell, has just been had for dinner by the
ciliate. Food items of that size are very rarely taken by ciliates who
usually prefer bacteria, smaller Protozoa and small algae. If you watch
the shot you will see no fellow organisms around the ciliate indicating
that the water is comparatively clean; the gulping of Pinnularia may
just have been a desperate attempt to make a living in a situation of
food shortage. In fact, the cleaner the water is, the more unlikely it
is to find ciliates there; the best sources for ciliates are usually the
biological degradation stages of sewage water treatment plants. Having
no access to that, I prefer to go hunting Protozoa in small ponds and
ditches located in agriculturally used greenlands; the water there is
usually well fertilized providing excellent conditions for Protozoa
life.

More of it to come soon.

Take care,

Ralf



name="Ciliateeat.jpg"
name="Pinnularia.jpg"

댓글
Lizzy
So interesting site, thanks!
Lizzy
Alleen onder Glamour versta ik wat anders maar dat moet kunnen.
Lizzy
Hello admin, nice site you have!
Lizzy
Great website! Bookmarked! I am impressed at your work!
Lizzy
I can't be bothered with anything these days, but such is life. I don't care. So it goes. More or less nothing seems worth thinking about. I've just been hanging out waiting for something to happen, but that's how it is.
Lizzy
Alleen onder Glamour versta ik wat anders maar dat moet kunnen.
Lizzy
Very good site. Thanks for author!
Lizzy
Not much on my mind right now, but it's not important. I've just been letting everything happen without me. I just don't have anything to say right now.
Lizzy
Hello admin, nice site you have!
Lizzy
Just found your home page its great, it looks like you folks do great service keep up the good work.
Lizzy
Your site is very cognitive. I think you will have good future.:)
John
Very good site. Thanks for author!
David
Hello there! Just want to say that I find your site enough interesting for me. Usefull information and all is good arranged. Thank you for your work. I will visit your site more ofter from now and I bookmarked it.
Dirk
I can't be bothered with anything these days, but such is life. I don't care. So it goes. More or less nothing seems worth thinking about. I've just been hanging out waiting for something to happen, but that's how it is.
John
Your site is very cognitive. I think you will have good future.:)
Monika
Great website! Bookmarked! I am impressed at your work!
Dirk
Best site I see. Thanks.
Antony
Just whant to say HI! I love this place!
Kevin
I can't be bothered with anything these days, but such is life. I don't care. So it goes. More or less nothing seems worth thinking about. I've just been hanging out waiting for something to happen, but that's how it is.
Monika
Hello admin, nice site you have!
John
Very good site. Thanks for author!
William
So interesting site, thanks!
John
Very good site. Thanks for author!
Lemat
I can't be bothered with anything these days, but such is life. I don't care. So it goes. More or less nothing seems worth thinking about. I've just been hanging out waiting for something to happen, but that's how it is.
Mary
So interesting site, thanks!
Louise
This is a wonderful wealth of information. Good Luck!
Monika
Hello admin, nice site you have!
pasparty
Your home page its great
barrycmster
Great website! Bookmarked! I am impressed at your work!
ppionerka
I like your site
bezdar1
I'm really impressed!
eotommyna
Very nice point of view! Respect!
zyo777mopt
Very nice point of view! Respect!
zorhcnu fodqt
oajerdi uarmpc jflwv zshdurtow qbilnmudf maegtpf mbojsgr
aro777mosg
Very nice point of view! Respect!
ggo777mocl
Very nice point of view! Respect!
oko777moet
Very nice point of view! Respect!
woo777moao
Very nice point of view! Respect!
culokomotivewx
I like it! 4593bd58ab12b91256d5277fed336d30
gylokomotivexb
hello! nice site, I like it!
jwlokomotivevr
hello! nice site, I like it!
axryzhijchertlc
WOW, my fatcher boght a new computer for me today!
qbryzhijchertoo
WOW, my fatcher boght a new computer for me today!
aeryzhijchertuh
WOW, my fatcher boght a new computer for me today!
fbryzhijchertdh
WOW, my fatcher boght a new computer for me today!
dwryzhijcherted
WOW, my fatcher boght a new computer for me today!
nsryzhijchertbr
WOW, my fatcher boght a new computer for me today!
eiryzhijcherthi
WOW, my fatcher boght a new computer for me today!
jvryzhijchertyw
WOW, my fatcher boght a new computer for me today!
qzryzhijchertaj
WOW, my fatcher boght a new computer for me today!
thryzhijchertnz
WOW, my fatcher boght a new computer for me today!
paryzhijchertkx
Good site!
hxryzhijchertxc
Good site!
kmryzhijchertll
Good site!
pdryzhijchertqx
Good site!
jrryzhijchertpp
Good site!
veryzhijcherttm
Good site!
ydryzhijchertub
Good site!
xnryzhijchertiw
Good site!
yiryzhijchertjh
Good site!
ipryzhijchertdg
Good site!
cdryzhijchertsb
Good site!
ttryzhijcherttd
Good site!
zvryzhijchertyj
Good site!
giryzhijchertdc
Good site!
vcryzhijchertgb
Good site!
uuryzhijchertov
Good site!
xgryzhijchertbt
Good site!
kuryzhijchertoe
Good site!
rdryzhijchertqj
Good site!
lvryzhijchertge
Good site!
cyryzhijchertsw
Good site!
anryzhijchertpo
Good site!
hzryzhijchertll
Good site!
ihryzhijchertrd
Good site!
kfryzhijchertwf
Good site!
gzryzhijchertso
Good site!
twryzhijchertst
Good site!
peryzhijcherthj
Good site!
xmryzhijchertzr
Good site!
ztryzhijchertff
Good site!
bwryzhijchertux
Good site!
wgryzhijchertjo
Good site!
jkryzhijchertfm
Good site!
jkryzhijchertnz
Good site!
hmryzhijchertof
Good site!
kxryzhijchertip
Good site!
ohryzhijchertwi
Good site!
avryzhijchertcd
Good site!
vhryzhijchertjg
Good site!
kjryzhijchertyf
Good site!
dhryzhijchertvg
Good site!
gdryzhijchertsr
Good site!
zdryzhijchertgj
Good site!
iwryzhijchertvs
Good site!
iaryzhijchertgx
Good site!
zsryzhijchertwq
Good site!
trryzhijchertlq
Good site!
qpryzhijchertfd
Good site!
vhryzhijchertbv
Good site!
ozryzhijchertut
Good site!
emryzhijchertzf
Good site!
epryzhijchertoa
Good site!
zuryzhijchertuq
Good site!
ddryzhijchertba
Good site!
srryzhijchertxm
Good site!
wgryzhijchertjk
Good site!
iuryzhijchertdm
Good site!
daryzhijchertmd
Good site!
vkryzhijchertpd
Good site!
ulryzhijchertax
Good site!
ahryzhijchertrf
Good site!
udryzhijchertje
Good site!
qhryzhijcherthc
Good site!
paryzhijchertjy
Good site!
ipryzhijchertqg
Good site!
bfryzhijchertun
Good site!
csryzhijchertnh
Good site!
jnryzhijcherteo
Good site!
rnryzhijchertgn
Good site!
rgryzhijchertfk
Good site!
flryzhijchertpc
Good site!
ryryzhijchertje
Good site!
xuryzhijchertus
Good site!
varyzhijchertyh
Good site!
qlryzhijchertgo
Good site!
gfryzhijchertlg
Good site!
mdryzhijchertcc
Good site!
kmryzhijchertvl
Good site!
ceryzhijchertoh
Good site!
ezryzhijchertbi
Good site!
ohryzhijchertyc
Good site!
eoryzhijchertqj
Good site!
qlryzhijchertoi
Good site!
ssbondiaoo
Bon Dia!
ynryzhijchertlb
Good site!
rjbondiaur
Bon Dia!
waryzhijchertlh
Good site!
qqsoftox
Good site!
twsoftnq
Good site!
irsoftgr
Good site!
gsrjaudpk mnfhzpb
ebgyn gkedy izld xeoghi oeiymhlwf hmpvunk nxjertmkd
mwgxk cleawqnbx
yntmagx xatiwfrms kdatvgy bmtnvkwgl cynaspgw cnkqf cezupfxow
mwgxk cleawqnbx
yntmagx xatiwfrms kdatvgy bmtnvkwgl cynaspgw cnkqf cezupfxow

snail
567/729
| 똑똑누리집 | 신규 사진 | 아무거나 | 동물유머 | English |
^o^ 동물그림창고 똑똑전화 누리집 ^o^