QUE SIGNIFIE LEUCOPLAST EN ANGLAIS
Leucoplast
Les leucoplastes sont une catégorie de plastides et, en tant que tels, se trouvent des organelles dans les cellules végétales. Ils ne sont pas pigmentés, contrairement aux autres plastides tels que le chloroplaste. En manque de pigments, les leucoplastes ne sont pas verts. Ils sont incolores, donc ils sont prévisiblement situés dans les racines et les tissus non photosynthétiques des plantes. Ils peuvent devenir spécialisés pour le stockage en vrac d'amidon, de lipides ou de protéines et sont alors connus sous le nom de amyloplasts, elaioplasts ou protéinoplasts respectivement. Cependant, dans de nombreux types de cellules, les leucoplastes n'ont pas une fonction de stockage majeure et sont présents pour fournir une large gamme de fonctions biosynthétiques essentielles, y compris la synthèse d'acides gras, de nombreux acides aminés et de composés de tétrapyrrole tels que haem. En général, les leucoplastes sont beaucoup plus petits que les chloroplastes et ont une morphologie variable, souvent décrite comme amibé. Des réseaux étendus de stromules reliant des leucoplasts ont été observés dans des cellules épidermiques de racines, d'hypocotyles et de pétales, ainsi que dans des cellules de culture de cals et de culture en suspension de tabac.
définition de leucoplast dans le dictionnaire anglais
La définition de leucoplaste dans le dictionnaire est n'importe lequel des petits corps incolores présents dans le cytoplasme des cellules végétales et utilisés pour stocker le matériel alimentaire, notamment l'amidon.
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10 LIVRES EN ANGLAIS EN RAPPORT AVEC «LEUCOPLAST»
Découvrez l'usage de
leucoplast dans la sélection bibliographique suivante. Des livres en rapport avec
leucoplast et de courts extraits de ceux-ci pour replacer dans son contexte son utilisation littéraire.
1
An Introduction to Plant Cell Development
Other types of leucoplast Proplastids and amyloplasts are examples of plastids
which lack pigmentation. The generic name for such organelles is leucoplasts;
plastids with pigments are generically known as chromoplasts. There are a few ...
2
An Investigation of Castor Bean
Leucoplast Tic40 Targeting ...
Translocons, protein transport machinery, reside at the outer and inner membranes of mitochondria (Tom/Tim) and chloroplasts (Toc/Tic) and are responsible for the recognition and processing of incoming proteins.
Katherine I. Karakasis,
2006
3
Cytology and Cell Physiology
However, it is in roots that the term leucoplast has perhaps the greatest meaning.
Root cells, other than those of the root cap which contain statoliths or
meristematic cells which contain eoplasts, have colorless plastids for which the
description ...
Geoffrey Howard Bourne,
1987
4
Compartmentation of Plant Metabolism in Non-Photosynthetic ...
be released whereas pyruvate is the last product to be released from the
leucoplast form. ADP is the first substrate to bind in both forms of PK. For the
leucoplast enzyme, this means that pyruvate is competitive with ADP binding (
Ireland et a/., ...
I LEUCOPLAST The amyloplast look like proplastids with fewer lamellae. The
lamellae number can increase in light and they can develop into chloroplast.
They lack chlorophyll and other coloured pigments. The amyloplast can store
starch for ...
6
Plastics from Bacteria: Natural Functions and Applications
Analysis of seeds by transmission electron microscopy revealed that PHB
accumulated exclusively within the leucoplast, and that apparently every visible
plastid contained the polymer. Seeds accumulating nearly 8% dwt PHB
appeared ...
George Guo-Qiang Chen,
2009
7
The New international encyclopaedia
Structurally it is a 8TABCH ORA1NS (WHITE) FORMINQ INSIDE LEUCOPLASTS
. a, ma eccentric grain, with the bulk of the leucoplast on one end ; 6, a younger
stage of the same. sphere crystal, being composed of minute hairlike crystals ...
Frank Moore Colby, Talcott Williams, Herbert Treadwell Wade,
1922
8
Seed Development: OMICS Technologies toward Improvement of ...
In developing castor beans, transit peptides of 44 and 60 amino acids are
respectively cleaved from PKp α- and β-subunit preproteins following their import
from the cytosol into leucoplast (Negm et al. 1995). The α- and β-subunits of
castor ...
Ganesh K. Agrawal, Randeep Rakwal,
2012
9
Comprehensive Objective Biology
Ground nut and rape oil seed possess (a) Leucoplast D (b) Elaioplast (c)
Aleuroplast D (d) Chromoplast. Internal lamellae degenerates in (a) Leucoplast D
(b) Elaioplast (c) Aleuroplast D (d) Chromoplast. D D a D D D D D Which one of
the ...
10
Cell Biology and Genetics
Q. 5 : Differentiate between Leucoplast and chromoplast. Ans. : Q. 6 : What is
stroma and Grana ? Describe their chemical composition. Ans. : A chloroplast
remains surrounded by two membranes - an outer and an inner. Both are about
50 A in ...
Geeta Bansal, M. C. Bhatnagar
10 ACTUALITÉS CONTENANT LE TERME «LEUCOPLAST»
Découvrez de quoi on parle dans les médias nationaux et internationaux et comment le terme
leucoplast est employé dans le contexte des actualités suivantes.
Mamata Visits Baby Whose Thumb Was Cut By Nurse
... nurse — in an attempt to cut a leucoplast to remove the channel made for administering saline — allegedly severed the thumb with scissors. «Focus News, juil 15»
Mamata wants nurse who cut child's thumb sacked
... with the nurse - in an attempt to cut a leucoplast to remove the channel made for administering saline - severed the thumb with the scissors. «Times of India, juil 15»
Proposal for Left, Cong. coming together gets support
“The CPI (M) should put leucoplast on their mouth and allow Mamata Banerjee for 35 years,” TMC leader and State's Food and Supplies ... «The Hindu, juin 15»
Congress should get down to some serious work: TMC
“After May 2014, Congress should put some leucoplast on its lips, get down to some serious work, allow them to show themselves once more ... «Bharat Press, mai 15»
Mamata Banerjee rules out early Assembly poll in West Bengal
She asked the Opposition MLAs “to remain mum by putting leucoplast on their mouth for the next 35 years.” Slamming the BJP the chief ... «The Asian Age, mai 15»
I broke my finger while watching an India-South Africa match!
After a few moments I quickly strapped the finger with a leucoplast tape. I called up my friend and came to know that he too was upset with the ... «Cricket Country, mai 15»
State govt orders probe into pasting of 'bhukamp' stickers
In an instance of adding insult to the injury, pieces of leucoplast reading 'bhukamp' was pasted on the foreheads of nine out of 13 injured in ... «Times of India, avril 15»
India Players Barred From Using BCCI Logo in Domestic Matches
... his India helmet patched with white plaster and opposition skipper Manoj Tiwary did cover his India ODI cap with brown coloured leucoplast. «NDTVSports.com, déc 14»
TMC-Oppn trade barbs over Ponzi schemes
... provocative speeches that is resulting on attacks on Left Front workers, Bose said: “She tells everybody to put leucoplast on their mouths. «Indian Express, avril 14»
Twin robberies shock south Kolkata
They tied up Ratna's hands and legs with duppatas, gagged her with leucoplast and went about looting the flat for over half-an-hour. «Times of India, déc 13»