Did you know ? If you order before Friday 14h we deliver 90PCT of the the time next Tuesday, GENTAUR another in time delivery

Pubmed ID :20071603
Publication Date : //

The Arabidopsis PHYTOCHROME KINASE SUBSTRATE2 protein is a phototropin signaling element that regulates leaf flattening and leaf positioning.

In Arabidopsis (Arabidopsis thaliana), the blue light photoreceptor phototropins (phot1 and phot2) fine-tune the photosynthetic status of the plant by controlling several important adaptive processes in response to environmental light variations. These processes include stem and petiole phototropism (leaf positioning), leaf flattening, stomatal opening, and chloroplast movements. The PHYTOCHROME KINASE SUBSTRATE (PKS) protein family comprises four members in Arabidopsis (PKS1-PKS4). PKS1 is a novel phot1 signaling element during phototropism, as it interacts with phot1 and the important signaling element NONPHOTOTROPIC HYPOCOTYL3 (NPH3) and is required for normal phot1-mediated phototropism. In this study, we have analyzed more globally the role of three PKS members (PKS1, PKS2, and PKS4). Systematic analysis of mutants reveals that PKS2 (and to a lesser extent PKS1) act in the same subset of phototropin-controlled responses as NPH3, namely leaf flattening and positioning. PKS1, PKS2, and NPH3 coimmunoprecipitate with both phot1-green fluorescent protein and phot2-green fluorescent protein in leaf extracts. Genetic experiments position PKS2 within phot1 and phot2 pathways controlling leaf positioning and leaf flattening, respectively. NPH3 can act in both phot1 and phot2 pathways, and synergistic interactions observed between pks2 and nph3 mutants suggest complementary roles of PKS2 and NPH3 during phototropin signaling. Finally, several observations further suggest that PKS2 may regulate leaf flattening and positioning by controlling auxin homeostasis. Together with previous findings, our results indicate that the PKS proteins represent an important family of phototropin signaling proteins.

Authors : de Carbonnel Matthieu , Davis Phillip , Roelfsema M Rob G , Inoue Shin-Ichiro , Schepens Isabelle , Lariguet Patricia , Geisler Markus , Shimazaki Ken-Ichiro , Hangarter Roger , Fankhauser Christian ,

Related products :

Catalog number Product name Quantity
8022-81-9 Boldo leaf oil (peumus boldus mol.) Boldo leaf oil (peumus 1g
8060-29-5 Olive Leaf Extract Olive Leaf Extract 1g
61789-48-8 Clove leaf terpenes Clove leaf terpenes 1g
84775-48-4 Coca leaf Extract Coca leaf Extract 1g
8006-78-8 Bay oil Bay Leaf Oil 1g
11140007-1 Leaf PCR kit-50 Reactions 1 Kit
928-96-1 cis_3_Hexen_1_ol cis_3_Hexenol ; Leaf alc 1g
57371-42-3 Benzyleugenol ex clove leaf oil 1g
TBD-4 LeafEye Colorimeter for leaf, petal, etc.
4586-22-5 Caryophyllenol ex clove leaf oil 1g
046-12 Litorin _ Rohdei (Leaf Frog) _ 500ug 500 µg
28069-74-1 (Z)_1_(1_Ethoxyethoxy)_3_hexene Leaf acetal 1g
3419 SPECIFIC IgE BAY LEAF (Laurus nobilis), SERUM 1
KMA1224 The leaf of brain model, 2 parts, plastic pvc Set
IP12527 Potato Leaf Roll Virus (PLRV) 48T
8037-19-2 Tobacco leaf absolute Nicotiana affinia 1g
201-13-0072 Grapevine Leaf Roll Virus(1,3)ELISA Kit 96T
201-13-0069 Blueberry Leaf Mottle Virus(BLMV)ELISA Kit 96T
201-13-0079 Cherry Leaf Roll Virus(CLRV)ELISA Kit 96T
KMA1224 The leaf of brain model, 2 parts, plastic pvc, 215x170x140
AS12 2112 Antibody: PIF5 | PHYTOCHROME INTERACTING FACTOR 5, Immunogen: KLH-conjugated synthetic peptide derived from Arabidopsis thalianaPIF5, Host: rabbit, polyclonal, Confirmed reactivity: Arabidopsis thalia 200
AP-9203-9 Rabbit Anti-Apple Chlorotic Leaf Spot Virus (ACLSV) IgG fraction POLYCLONAL 1mg
AS10 720 Antibody: PHOT1 | phototropin-1, Immunogen: KLH-conjugated synthetic peptide derived from known Arabidopsis thaliana PHOT1 O48963, Host: rabbit, polyclonal, Confirmed reactivity: Arabidopsis thaliana 100
AS10 721 Antibody: PHOT2 | phototropin-2, Immunogen: KLH-conjugated synthetic peptide derived from known Arabidopsis thaliana PHOT2 P93025, Host: rabbit, polyclonal, Confirmed reactivity: Arabidopsis thaliana 100


GENTAUR Belgium BVBA BE0473327336
Voortstraat 49, 1910 Kampenhout BELGIUM
Tel 0032 16 58 90 45

Fax 0032 16 50 90 45
info@gentaur.com | Gentaur

Howard Frank Turnberry House
1404-1410 High Road
Whetstone London N20 9BH
Tel 020 3393 8531 Fax 020 8445 9411
uk@gentaur.com | Gentaur



9, rue Lagrange, 75005 Paris
Tel 01 43 25 01 50

Fax 01 43 25 01 60
RCS Paris B 484 237 888

SIRET 48423788800017


france@gentaur.com | Gentaur

Marienbongard 20
52062 Aachen Deutschland
Support Karolina Elandt
Tel: 0035929830070
Fax: (+49) 241 56 00 47 88

Logistic :0241 40 08 90 86
Bankleitzahl 39050000
IBAN lautet DE8839050000107569353
Handelsregister Aachen HR B 16058
Umsatzsteuer-Identifikationsnummer *** DE 815175831
Steuernummer 201/5961/3925
de@gentaur.com | Gentaur

Genprice Inc, Logistics
547, Yurok Circle
San Jose, CA 95123
CA 95123
Tel (408) 780-0908,
Fax (408) 780-0908,

Genprice Inc, Invoices and accounting
6017 Snell Ave, Ste 357
San Jose, CA 95123

GENTAUR Nederland BV
NL850396268B01 KVK nummer 52327027
Kuiper 1
5521 DG Eersel Nederland
Tel:  0208-080893  Fax: 0497-517897
nl@gentaur.com | Gentaur
IBAN: NL04 RABO 0156 9854 62   SWIFT RABONL2U

spain@gentaur.com | Gentaur

ID # 201 358 931 /BULSTAT
София 1000, ул. "Граф Игнатиев" 53 вх. В, ет. 2
Tel 0035924682280 Fax 0035924808322
e-mail: Sofia@gentaur.com | Gentaur
IBAN: BG11FINV91501014771636

GENTAUR Poland Sp. z o.o.

ul. Grunwaldzka 88/A m.2
81-771 Sopot, Poland
TEL Gdansk 058 710 33 44 FAX  058 710 33 48              

poland@gentaur.com | Gentaur

Other countries

Österreich +43720880899

Canada Montreal +15149077481

Ceská republika Praha +420246019719

Danmark +4569918806

Finland Helsset +358942419041

Magyarország Budapest +3619980547

Ireland Dublin+35316526556


Norge Oslo+4721031366

Sverige Stockholm+46852503438

Schweiz Züri+41435006251

US New York+17185132983

SRL IVA IT03841300167
Piazza Giacomo Matteotti, 6
24122 Bergamo Tel 02 36 00 65 93
Fax 02 36 00 65 94
italia@gentaur.com | Gentaur