Gene_locus Report for: strhe-ShHTL9

(Below N is a link to NCBI taxonomic web page and E link to ESTHER at designed phylum.)
> cellular organisms: N E > Eukaryota: N E > Viridiplantae: N E > Streptophyta: N E > Streptophytina: N E > Embryophyta: N E > Tracheophyta: N E > Euphyllophyta: N E > Spermatophyta: N E > Magnoliophyta: N E > Mesangiospermae: N E > eudicotyledons: N E > Gunneridae: N E > Pentapetalae: N E > asterids: N E > lamiids: N E > Lamiales: N E > Orobanchaceae: N E > Buchnereae: N E > Striga: N E > Striga hermonthica: N E

RsbQ-like : strhe-ShHTL2Striga hermonthica (Purple witchweed) (Buchnera hermonthica). Hyposensitive to light 2, strhe-ShHTL10Striga hermonthica (Purple witchweed) (Buchnera hermonthica). Hyposensitive to light 10, strhe-ShHTL6Striga hermonthica (Purple witchweed) (Buchnera hermonthica). Hyposensitive to light 6, strhe-ShHTL8 Striga hermonthica (Purple witchweed) (Buchnera hermonthica). Hyposensitive to light 8, strhe-ShHTL11Striga hermonthica (Purple witchweed) (Buchnera hermonthica). Hyposensitive to light 11, strhe-ShD14 Striga hermonthica (Purple witchweed) (Buchnera hermonthica) Dwarf 14 ShD14 strigolactone receptor, strhe-ShHTL4 Striga hermonthica (Purple witchweed) (Buchnera hermonthica) hyposensitive to light 4, strhe-ShHTL1 Striga hermonthica (Purple witchweed) (Buchnera hermonthica) hyposensitive to light 1, strhe-ShHTL7 Striga hermonthica (Purple witchweed) (Buchnera hermonthica) hyposensitive to light 7, strhe-ShHTL3 Striga hermonthica (Purple witchweed) (Buchnera hermonthica) KAI2-like protein (Hyposensitive to light 3) ShKAI2iB, strhe-ShHTL5 Striga hermonthica (Purple witchweed) (Buchnera hermonthica) hyposensitive to light 5. Strigolactone receptor 5 ShHTL5

Title: Structure-function analysis identifies highly sensitive strigolactone receptors in Striga
Toh S, Holbrook-Smith D, Stogios PJ, Onopriyenko O, Lumba S, Tsuchiya Y, Savchenko A, McCourt P
Ref: Science, 350:203, 2015 : PubMed
Abstract


ESTHER: Toh_2015_Science_350_203
PubMedSearch: Toh 2015 Science 350 203
PubMedID: 26450211
Gene_locus related to this paper: strhe-ShHTL2, strhe-ShHTL10, strhe-ShHTL6, strhe-ShHTL9, strhe-ShHTL8, strhe-ShHTL11, strhe-ShHTL4, strhe-ShHTL1, strhe-ShHTL7, strhe-ShHTL3, strhe-ShHTL5

Abstract

Strigolactones are naturally occurring signaling molecules that affect plant development, fungi-plant interactions, and parasitic plant infestations. We characterized the function of 11 strigolactone receptors from the parasitic plant Striga hermonthica using chemical and structural biology. We found a clade of polyspecific receptors, including one that is sensitive to picomolar concentrations of strigolactone. A crystal structure of a highly sensitive strigolactone receptor from Striga revealed a larger binding pocket than that of the Arabidopsis receptor, which could explain the increased range of strigolactone sensitivity. Thus, the sensitivity of Striga to strigolactones from host plants is driven by receptor sensitivity. By expressing strigolactone receptors in Arabidopsis, we developed a bioassay that can be used to identify chemicals and crops with altered strigolactone levels.



        

Title: PARASITIC PLANTS. Probing strigolactone receptors in Striga hermonthica with fluorescence
Tsuchiya Y, Yoshimura M, Sato Y, Kuwata K, Toh S, Holbrook-Smith D, Zhang H, McCourt P, Itami K and Hagihara S <1 more author(s)> Tsuchiya Y, Yoshimura M, Sato Y, Kuwata K, Toh S, Holbrook-Smith D, Zhang H, McCourt P, Itami K, Kinoshita T, Hagihara S (- 1)
Ref: Science, 349:864, 2015 : PubMed
Abstract


ESTHER: Tsuchiya_2015_Science_349_864
PubMedSearch: Tsuchiya 2015 Science 349 864
PubMedID: 26293962
Gene_locus related to this paper: strhe-ShHTL2, strhe-ShHTL10, strhe-ShHTL6, strhe-ShHTL9, strhe-ShHTL8, strhe-ShHTL11, strhe-ShD14, strhe-ShHTL4, strhe-ShHTL1, strhe-ShHTL7, strhe-ShHTL3, strhe-ShHTL5

Abstract

Elucidating the signaling mechanism of strigolactones has been the key to controlling the devastating problem caused by the parasitic plant Striga hermonthica. To overcome the genetic intractability that has previously interfered with identification of the strigolactone receptor, we developed a fluorescence turn-on probe, Yoshimulactone Green (YLG), which activates strigolactone signaling and illuminates signal perception by the strigolactone receptors. Here we describe how strigolactones bind to and act via ShHTLs, the diverged family of alpha/beta hydrolase-fold proteins in Striga. Live imaging using YLGs revealed that a dynamic wavelike propagation of strigolactone perception wakes up Striga seeds. We conclude that ShHTLs function as the strigolactone receptors mediating seed germination in Striga. Our findings enable access to strigolactone receptors and observation of the regulatory dynamics for strigolactone signal transduction in Striga.