Biosynthesis and metabolism of abscisic acid and …

* Heat tolerance. One of the major problems sod producers face is thereduced shelf life of sod harvested during stressful periods of hightemperature and light intensity. However, applications of propiconazole,alone or with seaweed extract or humic acid, can lessen the injuryassociated with sod in pallets or rolls for extended periods of hightemperature (100 degrees F).

The phytohormone abscisic acid ..

* Amino acids are building blocks for proteins and enzymes. Some free aminoacids, such as proline, improve osmotic adjustment and water-stresstolerance of plants.

Abscisic Acid: Biosynthesis and Methods | Plant Hormones

* Salicylic acid, the active ingredient in aspirin, seems to improve plantresistance to disease and environmental stresses.

Our research at Virginia Tech shows that antioxidant activity (such asvitamin E, vitamin C, beta-carotene and superoxide dismutase) increasesrapidly when turf is under drou ControlHumic acid Seaweed extract Humicacid + Seaweed extractght stress, suggesting that antioxidants are animportant defense against stress. Application of biostimulants furtherenhances antioxidant activity of the grasses (see Graph 1, at right),magnifying the plants' own defensive system.

Abscisic acid biosynthesis inhibitor, ..

N2 - This review describes research on the chemistry (biosynthesis, metabolism and synthetic analogs) of a plant hormone, abscisic acid (ABA), covering 1970 to 2002 with 123 references.

gibberellin, abscisic acid and jasmonates, ..

This chain type is frequently found in several lipid forms, either isolated or combinedwith other chemical structures. A series of long-chain methylated alkanes (more than 23carbon atoms), saturated or with one double bond, were identified in settlingparticles and surface sediments from Japanese lakes and were shown to beproduced by planktonic bacteria being thus useful molecular markers (). Laboratory experiments havedemonstrated that -alkanes up to C35 may be formed in the laboratoryunder hydrothermal conditions (Fischer-Tropsch-type reactions) from formic acidor oxalic acid ().These results support the theory of the origin of life in hydrothermal systems.
Methoxyalkanes have been identified on bodies or silk of spiders :1-methoxy-16,20,24,28-tetramethylhentriacontane and1-methyl-2,24-dimethyloctacosane ().
It must be noticed that highly branched and unsaturated (2-5 double bonds)isoprenoids are widespread components in marine sediments (review by). The identification of C25 and evenof C30 highly branched isoprenoid alkenes in diatoms () have clearly established that they are the source ofthese compounds found in sediments.
Among the saturated isoprenoids found in geological sediments and oils, the mostfrequent are pristane (2,6,10,14-tetramethylpentadecane) and phytane (2,6,10,14-tetramethylhexadecane). Both compounds can be generateddiagenetically from the phytol side chain of chlorophyll. Pristane may alsoderive from the side chain of tocopherols while phytane is also generated byArchaea.

Apr 21, 2017 · Abscisic acid Hongwei Guo, Jinsong ..

AB - This review describes research on the chemistry (biosynthesis, metabolism and synthetic analogs) of a plant hormone, abscisic acid (ABA), covering 1970 to 2002 with 123 references.

Discovery and functions of abscisic acid; 5.2

Hedden P, Phillips AL, Rojas MC, Carrera E and Tudzynski B (2002) Gibberellin biosynthesis in plants and fungi: a case of convergent evolution? Journal of Plant Growth Regulation 20(4): 319–331.