Results 341 to 350 of about 84,924 (375)

Sunflower (Helianthus annuus L.).

Methods in molecular biology, 2015
Sunflower (Helianthus annuus L.) is still considered as a recalcitrant species to in vitro culture and transformation in spite of the publication of different protocols. Here we describe a routine transformation system of this crop which requires mature HA89 genotype seeds and Agrobacterium tumefaciens EHA105 strain for gene delivery, being both easily
Laura M. Radonic, Dalia M. Lewi, Nilda López, H. E. Hopp, A. Escandón, Marisa López Bilbao   +5 more
semanticscholar   +4 more sources

Genomic alterations in the interspecific hybrid Helianthus annuus×Helianthus tuberosus

Theoretical and Applied Genetics, 1998
The genome of a Helianthus annuus (2n=34) ×Helianthus tuberosus (2n=102) hybrid was studied at cytological, biochemical and molecular levels and compared to those of the parental species. Cytophotometric analyses showed that the hybrid has a 4C DNA content higher than expected and with a larger variability than in the parents.
NATALI, LUCIA, GIORDANI, TOMMASO, POLIZZI, ENZA, PUGLIESI, CLAUDIO, FAMBRINI, MARCO, CAVALLINI, ANDREA   +5 more
openaire   +3 more sources

Organogenesis and embryogenesis inHelianthus tuberosus and in the interspecific hybridHelianthus annuus ×Helianthus tuberosus

Plant Cell, Tissue and Organ Culture, 1993
A method of plant regeneration from cotyledons ofHelianthus tuberosus, Helianthus annuus ×Helianthus tuberosus and for the backcross of the interspecific hybrids onH. annuus was developed. Induction of somatic embryogenesis and plantlet regeneration from anther culture of the interspecific hybridsH. annuus ×H. tuberosus is reported.
PUGLIESI, CLAUDIO, MEGALE P., CECCONI, FRANCO, BARONCELLI S.   +3 more
openaire   +3 more sources

Constituents of Helianthus ciliaris

Phytochemistry, 1972
Abstract A new diterpene, 7-α-hydroxy-4-epitrachylobanic acid, has been isolated from Helianthus ciliaris DC. No sesquiterpene lactones were found in this plant.
Leonard F. Bjeldanes, T.A. Geissman
openaire   +2 more sources

Helianthus

2010
International ...
openaire   +3 more sources

Comparison of seed and seedling functional traits in native Helianthus species and the crop H. annuus (sunflower).

Plant biology, 2018
Seed functional traits of native Helianthus species contribute towards ecosystem services but limitations to their use in managed programmes exist. Many perennial Helianthus possess seed dormancy.
Elena Castillo-Lorenzo, Elena Castillo-Lorenzo, Hugh W. Pritchard, W. Finch‐Savage, C. Seal   +4 more
semanticscholar   +1 more source

Germacranolides in Helianthus mollis

Phytochemistry, 1979
Abstract Desacetyleupaserrin, eupaserrin and two new germacranolides, mollisorin-A and mollisorin-B, were isolated from H. mollis . 1 H NMR and 13 C NMR data and chemical interconversions of the four germacranolides are described.
Nobuo Ohno, Tom J. Mabry
openaire   +2 more sources

Sliding mode control for attitude maneuvers of Helianthus solar sail

Acta Astronautica, 2022
M. Bassetto, L. Niccolai, L. Boni, G. Mengali, A. Quarta, C. Circi, Simone Pizzurro, M. Pizzarelli, R. Pellegrini, E. Cavallini   +9 more
semanticscholar   +1 more source

MEDICAL IMPORTANCE OF HELIANTHUS TUBEROSUS- A REVIEW

, 2018
: Phytochemical analysis of Helianthus tuberosus showed that it contained coumarins, unsaturated fatty acids, polyacetylenic derivatives, phenols, flavonoids, sesquiterpenes, protein, amino acid, reducing sugars, organic acids, lactones and cardiac ...
A. Al-Snafi
semanticscholar   +1 more source

Accumulation and toxicity of lanthanum and neodymium in horticultural plants (Brassica chinensis L. and Helianthus annuus L.)

, 2016
Accumulation and Toxicity of Lanthanum and Neodymium in Horticultural Plants Arefeh Rezaee Advisors: University of Guelph, 2016 Dr. Emily YW Chiang Dr. Beverley Hale In this study, the dose response of Brassica chinensis L. and Helianthus annuus L.
A. Rezaee, B. Hale, R. Santos, C. Yi
semanticscholar   +1 more source