Results 131 to 140 of about 3,423 (173)

Inulin in Guayule, Parthenium argentatum Gray

Journal of the American Chemical Society, 1944
W Z Hassid
exaly   +2 more sources

Rooting responses of guayule (Parthenium argentatum Gray) cuttings to hormone solutions

South African Journal of Plant and Soil, 2005
Vegetative propagation of selected guayule (Parthenium argentatum Gray), with elite qualities of vigorous growth and high latex yield, was investigated.
G A Agenbag
exaly   +1 more source

Parthenium species of potential use in the improvement of guayule, Parthenium argentatum

Journal of Arid Environments, 1986
Guayule, Parthenium argentatum, a desert shrub indigenous to Mexico, has been used at various times in the past for the production of natural rubber. A revived interest in this plant as a rubber source has led to attempts to domesticate it and develop improved varieties.
V.B. Youngner, H.H. Naqvi, J. West, A. Hashemi   +3 more
openaire   +1 more source

Micropropagation of Guayule (Parthenium argentatum)

1992
Guayule is a member of the family Compositae, and belongs to the genus Parthenium (Fig. 1). It is a rubber-producing shrub, native to a semi-arid area in north-central Mexico and southwestern Texas, USA. The plant, with chromosome numbers of 2n = 36 to 108 or more, has narrow leaves, covered in a drought-protecting white wax, that alternate along the ...
Huizhu Xu, Minzhi Qian
openaire   +1 more source

Notes on Parthenium Argentatum A. Gray (Asteraceae)

Indian Journal of Forestry, 2014
Parthenium argentatum A. Gray, an introduced species is reported on the basis of herbarium specimens prepared from cultivated plant. A brief description alongwith distribution, ecological observation, illustration, photographs, etc. are provided herewith to facilitate easy identification of the species.
Jeetendra Vaishya, Anis Ansari, Nawal Dubey   +2 more
openaire   +1 more source

Triterpenoids from Parthenium argentatum x P. tomentosa

Phytochemistry, 2002
Four tetracyclic triterpenoids and lupeol were isolated from the hybrid Parthenium argentatum x P. tomentosa. The new triterpenoids were identified as 16, 24-epoxy-3 alpha-hydroxylanost-8-ene (argentatin E); 16, 24-epoxy-25-hydroxycycloart-1, 11, 22-trien-3-one (argentatin F); 16,24-dihydroxycycloart-20, 25-dien-3-one (argentatin G) and 16, 24 ...
Galal T, Maatooq, Ali A H, el-Gamal, Todd R, Furbacher, Tracy L, Cornuelle, Joseph J, Hoffmann   +4 more
openaire   +2 more sources

On the Inheritance of Apomixis in Parthenium argentatum

Botanical Gazette, 1950
1. In feral guayule the diploids (2n = 36) reproduce sexually, but polyploids are facultative apomicts. A fertile polyhaploid with the diploid number of chromosomes but facultatively apomictic in its reproduction was crossed with a diploid. If the polyhaploid was used as a female, the following progeny classes resulted: maternals, diploid F1, triploids,
openaire   +1 more source

A bicistronic transgene system for genetic modification of Parthenium argentatum

Plant Biotechnology Reports, 2018
Parthenium argentatum (guayule) was transformed with a bicistronic transgene containing a viral 2A cleavage sequence. The transgene includes the coding sequences of two key enzymes of the mevalonate pathway, 3-hydroxy-3-methylglutaryl-CoA reductase (HMGR) and farnesyl pyrophosphate synthase (FPPS), involved in rubber biosynthesis.
Colleen McMahan, Grisel Ponciano, Niu Dong   +2 more
exaly   +2 more sources

Parthenain, a protease from Parthenium argentatum

Phytochemistry, 1988
Abstract A homogeneous protease, parthenain, was isolated from Parthenium argentatum . The enzyme has serine at the active site and a dependence on free histidine residues. It is a glycoprotein of M r , about 63 000 and is composed of a single unit of pI 4.6. The enzyme has a preference for neutrally charged amino acid residues in oxidized insulin
openaire   +1 more source

A preliminary study of the carbohydrate metabolism in Parthenium argentatum

Bioresource Technology, 1991
Abstract The decline in starch observed in guayule at the end of summer cannot be attributed to a decrease in temperature, but rather that starch can, upon hydrolysis, provide carbon for the synthesis of fructans. In this plant, fructans are important winter reserves arising from a changed ratio of carbon utilization to carbon fixation, and are seen ...
K.M. Kelly, J. Van Staden
openaire   +1 more source