King Abdullah University of Science and Technology

Duke University

Agenzia Nazionale Per Le Nuove Tecnologie, L'ener- Gia E Lo Sviluppo Economico Sostenibile (Enea)

Salim Al-Babili

Adrian Alder

Tadao Asami

Alexandra Jazz Dickinson

Paola Ferrante

Sarah Frusciante

Kunpeng Jia

Umar Farook Shahul Hameed

Tsuyoshi Ohta

Gianfranco Diretto

Stefan Theodor Arold

Giovanni Giuliano

Marco Pietrella

A strigolactone analog-based composition comprising at least one compound represented by: (I) wherein Ra, Rb, Rc, Rf, Re, and Rz are selected. The compositions can be used in, for example, plant growth regulation and weed control, including controlling the germination of parasitic root plants, inhibiting rice tillering, and triggering leaf senescence.

Strigolactone analogs and their usage in plant control

The present invention uses compound 3-OH-&#x3b2;-apo-13-carotenone (zaxinone) as a negative regulator of the plant hormone strigolactones (SLs). The compound 3-OH-&#x3b2;-apo-13-carotenone is a positive growth regulator which triggers the formation of crown roots and promotes growth in size and number of roots and shoots. Disclosed herein is a method of using 3-OH-&#x3b2;-apo-13-carotenone as a growth-promoting compound for cereal, grain and vegetable crops. The 3-OH-&#x3b2;-apo-13-carotenone compounds is also a negative regulator of strigolactone biosynthesis and release. Disclosed herein is a method of combating root parasitic weeds affecting cereal, grain and vegetable crops. Application of 3-OH-&#x3b2;-apo-13-carotenone to plant growth media down-regulates strigolactone production in cereal, grain and vegetable crops preventing root parasitic weed infestation of the crops by inhibiting germination of parasitic weed seeds.

Plant growth promoter with strigolactones regulation activities

Embodiments of the present disclosure describe diapocarotenoid plant growth regulators represented by formula (I): R-A-R (I) or a precursor, salt, solvate, stereoisomer or polymorph thereof; wherein R is a monovalent carbonyl moiety selected from the group consisting of aldehydes, ethers, diethers, carboxylic acids, alcohols, and ester carboxylates and A is a bivalent polyene represented by the bivalent moiety &#x2014;(CR&#x2550;CR)&#x2014;, wherein x is the number of double bonds in polyene moiety A, and Rand Rare, independently, hydrogen, a hydrocarbon, or an alkoxy group, and composition of the diapocarotenoid plant growth regulators in an agronomically acceptable carrier. Methods of regulating plant growth including promoting root development, increasing nutrient uptake, enhancing resistance to abiotic stress factors, invigorating plant growth, increasing plant yield, and increasing plant biomass by applying at least one diapocarotenoid plant growth regulator to a seed, plant propagation material, plant or plant growth medium are also described.

Regulating plant growth using a diapocarotenoid

Herbicides, systems, and methods for inhibiting germination of a root parasitic plant are provided. In particular, the herbicide includes an active compound represented by Formula I. In this regard, the active compound is selected to bind to an active site of strigolactone receptors in seeds of the root parasitic plant.

Methods for controlling root parasitic weeds: inhibitors of seed germination in Striga

New plant growth regulators, including compounds and compositions, and methods of use including for promoting root growth. The compounds are carotenoid oxidation products, and a preferred example is 3-OH-&#x3b2;-apo-13-Carotenone. A method comprising promoting the growth of at least one plant with use of an effective amount of at least one composition comprising an effective amount of at least one compound which is represented by A-B-C, wherein B is a bivalent polyene moiety, A is a monovalent moiety linked to B by a six-membered carbon ring, wherein the ring has at least one substituent linked to the ring by an oxygen atom, and C is a monovalent moiety linked to B by a carbonyl group. Synergistic effects can be used with combinations of compounds.

Plant growth promoters and methods of using them

The present invention relates to a new carotenoid dioxygenase and methods for the biological production in microorganisms and plants of compounds with high added value derived from saffron.

Carotenoid dioxygenase and methods for the biotechnological production in microorganisms and plants of compounds derived from saffron

Novel compounds of formula (I) their use as germination trap for parasitic weeds, for the regulation of branching, tillering and root development, for enhancement of cambium growth, for the regulation of hyphal growth of mycorrhizal fungi and compositions comprising compounds of formula (I) and insecticides and/or fungicides.

Strigolactone analogues and their use

Novel compounds of formula (I) their use as germination trap for parasitic weeds, for the regulation of branching, tillering and root development, for enhancement of cambium growth, for the regulation of hyphal growth of mycorrhizal fungi and compositions comprising compounds of formula (I) and insecticides and/or fungicides. 

Growing community of inventors

Thuwal, Saudi Arabia

Salim Al-Babili