US2012065067A1PendingUtilityA1
Pamoic acid blocks ethylene signaling
Est. expirySep 14, 2030(~4.1 yrs left)· nominal 20-yr term from priority
Inventors:Paul Brian Larsen
A01N 37/44A01N 3/02A01N 37/40
50
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Claims
Abstract
The disclosure provides methods and compositions for modulating ethylene and auxin signaling and ethylene production in plants.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1 . A method of modulating auxin and/or ethylene signaling in plants comprising contacting a plant with a pamoic acid or derivative thereof.
2 . The method of claim 1 , wherein the pamoic acid has the general structure/formula I or II:
wherein R 1 and R 5 , which may be the same or different, are COOR 6 , CONHR 6 , SO 2 R 6 , SO 2 NHR 6 , SO 3 R 6 , OR 6 , COR 6 , NHR 6 , in which R 6 is H or a straight or branched, saturated or unsaturated alkyl chain, with from 1 to 5 carbon atoms, or phenyl, substituted by R 7 ; in which R 7 is OH, COOH, SO 3 H, NR 8 R 9 ,
in which R 8 and R 9 , which may be the same or different, are H, alkyl with 1 to 5 carbon atoms; R 2 and R 4 , which may be the same or different, are H, OH, NHR 6 , OCO—R 10 —NR 8 R 9 ,
in which R 10 is a straight or branched, saturated or unsaturated alkyl chain with from 1 to 5 carbon atoms; R 3 is —(CH 2 ) n —, —CH 2 —O—, —CH(R 11 )—, wherein n is an integer from 1 to 4; R 11 is a straight or branched alkyl with from 1 to 5 carbon atoms, substituted by an amino group, alkylamino C 1 -C 5 , dialkylamino C 1 -C 5 , OH, alkyloxy C 1 -C 5 .
3 . The method of claim 2 , wherein R 1 and R 5 are —COOCH(CH 3 ) 2 ; R 2 and R 4 are —OH; R 3 is —CH 2 —.
4 . A method of inhibiting ethylene production in a plant comprising contact the plant with a Pamoic acid or derivative thereof.
5 . The method of claim 4 , wherein the pamoic acid has the general structure/formula I or II:
wherein R 1 and R 5 , which may be the same or different, are COOR 6 , CONHR 6 , SO 2 R 6 , SO 2 NHR 6 , SO 3 R 6 , OR 6 , COR 6 , NHR 6 , in which R 6 is H or a straight or branched, saturated or unsaturated alkyl chain, with from 1 to 5 carbon atoms, or phenyl, substituted by R 7 ; in which R 7 is OH, COOH, SO 3 H, NR 8 R 9 ,
in which R 8 and R 9 , which may be the same or different, are H, alkyl with 1 to 5 carbon atoms; R 2 and R 4 , which may be the same or different, are H, OH, NHR 6 , OCO—R 10 —NR 8 R 9 ,
in which R 10 is a straight or branched, saturated or unsaturated alkyl chain with from 1 to 5 carbon atoms; R 3 is —(CH 2 ) n —, —CH 2 —O—, —CH(R 11 )—, wherein n is an integer from 1 to 4; R 11 is a straight or branched alkyl with from 1 to 5 carbon atoms, substituted by an amino group, alkylamino C 1 -C 5 , dialkylamino C 1 -C 5 , OH, alkyloxy C 1 -C 5 .
6 . The method of claim 5 , wherein R 1 and R 5 are —COOCH(CH 3 ) 2 ; R 2 and R 4 are —OH; R 3 is —CH 2 —.
7 . A method of inhibiting senescence due to auxin and/or ethylene signaling in a plant comprising contact the plant with a Pamoic acid or derivative thereof.
8 . The method of claim 7 , wherein the pamoic acid has the general structure/formula I or II:
wherein R 1 and R 5 , which may be the same or different, are COOR 6 , CONHR 6 , SO 2 R 6 , SO 2 NHR 6 , SO 3 R 6 , OR 6 , COR 6 , NHR 6 , in which R 6 is H or a straight or branched, saturated or unsaturated alkyl chain, with from 1 to 5 carbon atoms, or phenyl, substituted by R 7 ; in which R 7 is OH, COOH, SO 3 H, NR 8 R 9 ,
in which R 8 and R 9 , which may be the same or different, are H, alkyl with 1 to 5 carbon atoms; R 2 and R 4 , which may be the same or different, are H, OH, NHR 6 , OCO—R 10 —NR 8 R 9 ,
in which R 10 is a straight or branched, saturated or unsaturated alkyl chain with from 1 to 5 carbon atoms; R 3 is —(CH 2 ) n —, —CH 2 —O—, —CH(R 11 )—, wherein n is an integer from 1 to 4; R 11 is a straight or branched alkyl with from 1 to 5 carbon atoms, substituted by an amino group, alkylamino C 1 -C 5 , dialkylamino C 1 -C 5 , OH, alkyloxy C 1 -C 5 .
9 . The method of claim 8 , wherein R 1 and R 5 are —COOCH(CH 3 ) 2 ; R 2 and R 4 are —OH; R 3 is —CH 2 —.
10 . A method for stimulating root growth, leaf growth, and/or severely delaying flower senescence comprising contacting a plant or plant part with a pamoic acid or derivative thereof.
11 . The method of claim 10 , wherein the pamoic acid has the general structure/formula I or II:
wherein R 1 and R 5 , which may be the same or different, are COOR 6 , CONHR 6 , SO 2 R 6 , SO 2 NHR 6 , SO 3 R 6 , OR 6 , COR 6 , NHR 6 , in which R 6 is H or a straight or branched, saturated or unsaturated alkyl chain, with from 1 to 5 carbon atoms, or phenyl, substituted by R 7 ; in which R 7 is OH, COOH, SO 3 H, NR 8 R 9 ,
in which R 8 and R 9 , which may be the same or different, are H, alkyl with 1 to 5 carbon atoms; R 2 and R 4 , which may be the same or different, are H, OH, NHR 6 , OCO—R 10 —NR 8 R 9 ,
in which R 10 is a straight or branched, saturated or unsaturated alkyl chain with from 1 to 5 carbon atoms; R 3 is —(CH 2 ) n —, —CH 2 —O—, —CH(R 11 )—, wherein n is an integer from 1 to 4; R 11 is a straight or branched alkyl with from 1 to 5 carbon atoms, substituted by an amino group, alkylamino C 1 -C 5 , dialkylamino C 1 -C 5 , OH, alkyloxy C 1 -C 5 .
12 . The method of claim 11 , wherein R 1 and R 5 are —COOCH(CH 3 ) 2 ; R 2 and R 4 are —OH; R 3 is —CH 2 —.
13 . A method of preserving cut flowers comprising contacting the cut flower with a composition comprising pamoic acid or a derivative thereof.
14 . The method of claim 13 , wherein the pamoic acid has the general structure/formula I or II:
wherein R 1 and R 5 , which may be the same or different, are COOR 6 , CONHR 6 , SO 2 R 6 , SO 2 NHR 6 , SO 3 R 6 , OR 6 , COR 6 , NHR 6 , in which R 6 is H or a straight or branched, saturated or unsaturated alkyl chain, with from 1 to 5 carbon atoms, or phenyl, substituted by R 7 ; in which R 7 is OH, COOH, SO 3 H, NR 8 R 9 ,
in which R 8 and R 8 , which may be the same or different, are H, alkyl with 1 to 5 carbon atoms; R 2 and R 4 , which may be the same or different, are H, OH, NHR 6 , OCO—R 10 —NR 8 R 9 ,
in which R 10 is a straight or branched, saturated or unsaturated alkyl chain with from 1 to 5 carbon atoms; R 3 is —(CH 2 ) n —, —CH 2 —O—, —CH(R 11 )—, wherein n is an integer from 1 to 4; R 11 is a straight or branched alkyl with from 1 to 5 carbon atoms, substituted by an amino group, alkylamino C 1 -C 5 , dialkylamino C 1 -C 5 , OH, alkyloxy C 1 -C 5 .
15 . The method of claim 14 , wherein R 1 and R 5 are —COOCH(CH 3 ) 2 ; R 2 and R 4 are —OH; R 3 is —CH 2 —.
16 . A composition for delivery to a plant comprising a compound of formula I or II and a herbicide or preservative:
wherein R 1 and R 5 , which may be the same or different, are COOR 6 , CONHR 6 , SO 2 R 6 , SO 2 NHR 6 , SO 3 R 6 , OR 6 , COR 6 , NHR 6 , in which R 6 is H or a straight or branched, saturated or unsaturated alkyl chain, with from 1 to 5 carbon atoms, or phenyl, substituted by R 7 ; in which R 7 is OH, COOH, SO 3 H, NR 8 R 9 ,
in which R 8 and R 9 , which may be the same or different, are H, alkyl with 1 to 5 carbon atoms; R 2 and R 4 , which may be the same or different, are H, OH, NHR 6 , OCO—R 10 —NR 8 R 9 ,
in which R 10 is a straight or branched, saturated or unsaturated alkyl chain with from 1 to 5 carbon atoms; R 3 is —(CH 2 ) n —, —CH 2 —O—, —CH(R 11 )—, wherein n is an integer from 1 to 4; R 11 is a straight or branched alkyl with from 1 to 5 carbon atoms, substituted by an amino group, alkylamino C 1 -C 5 , dialkylamino C 1 -C 5 , OH, alkyloxy C 1 -C 5 .
17 . The composition of claim 16 , wherein R 1 and R 5 are —COOCH(CH 3 ) 2 ; R 2 and R 4 are —OH; R 3 is —CH 2 —.Join the waitlist — get patent alerts
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