After retiring in 2002 from the post of research professor at the UEL, I was appointed to an emeritus professorship. Since then I continued to supervise a PhD student (now graduated), carry out laboratory-based research on flow cytometry, publish research papers and was editor-in-chief of the Encyclopedia of Rose Science (Elsevier Press).

N/A

My academic experience is in the field of genetics and plant science. My research has focussed mainly on woody plants, particularly roses, including their tissue culture, cytogenetics and pathology.

The development and use of techniques for measuring nuclear DNA amounts of plants by flow cytometry.

Refereed Publications From 2000:

• Roberts AV, Gladis Th, Brumme H, 2009. DNA amounts of roses (Rosa L.) and their use in attributing ploidy levels. Plant Cell Rep. 28: 61-71.
• Roberts AV, 2007. The use of bead beating to prepare suspensions of nuclei for flow cytometry from fresh leaves, herbarium leaves, petals and pollen. Cytometry A 71A(12): 1039-1044.
• Allum J F, Bringloe D, Roberts A V, 2007. Factors affecting the efficiency of in vitro chromosome doubling in a diploid rose. Plant Cell Rep 26(11): 1977-1984. 
• Lall S, Mandegaran Z, Roberts AV, 2006. Shoot multiplication, adventitious shoot formation and somatic embryogenesis in Sorbus aucuparia L.. Plant Cell Tiss. Org. Cult. 85(1): 23-29.
• Squirrell J, Mandegaran Z, Yokoya K, Roberts AV, Mottley J, 2005. Cell lines and plants obtained after protoplast fusions of Rosa + Rosa, Rosa + Prunus and Rosa + Rubus. Euphytica 146: 223-231.
• Zhao YP, Grout BWW, Roberts AV 2005. Abnormal chromosomes and DNA content in micropropagated rhubarb (Rheum rhaponticum L.) PC49. Plant Cell Tissue Org. Cult. 83 (3): 335-338.
• Lall S, Mandegaran Z, Roberts AV, 2005. Shoot multiplication and somatic embryogenesis in Alnus glutinosa (L.) Gaertn.. Plant Cell Tiss. Org. Cult. 83 (3):347-350.
• Lim KY, Werlemark G, Matyasek R, Bringloe JB, Sieber V,  El Mokadem H, Meynet J, Hemming J, Leitch AR and Roberts A V, 2005. Evolutionary implications of permanent odd polyploidy in the stable sexual, pentaploid of Rosa canina L. Heredity 94: 501-506.
• Kermani MJ, Sarasan V, Roberts AV, Yokoya  K, Wentworth  J and Sieber VK, 2003. Oryzalin-induced chromosome doubling in Rosa and its effect on plant morphology and pollen viability. Theoretical and Applied Genetics 107: 1195-1200.
• Blakesley D, Allen A, Pellny T, Roberts AV, 2002. Natural and induced polyploidy in Acacia dealbata Link. and Acacia mangium Willd. Annals of Botany 90: 391-398.
• Sarasan V, Ramsay M and Roberts AV, 2002. In vitro germination and induction of direct somatic embryogenesis in Bottle Palm' (Hyophorbe lagenicauklis (L. Bailey) HE Moore) a critically endangered Mauritian palm. Plant Cell Rep  20: 1107-1111.
• Sarasan V, Roberts AV and Rout GR, 2001. Methyl laurate and 6-benzyladenine promote germination of somatic embryos of a hybrid rose. Plant Cell Rep 20: 183-186.
• Yokoya K, Roberts AV, Mottley J, Lewis R and Brandham PE, 2000. Nuclear DNA amounts in roses. Annals of Botany 85: 557-561.
• Yokoya K, Kandasamy K I, Walker S, Mandegaran Z and Roberts AV, 2000. Resistance of roses to pathotypes of Diplocarpon rosae Ann. Appl. Biol. 136: 15-20.
• Gandelin M-H, Reynders-Aloisi S, Mando B, Debener T, Drewes-Alvarez R, Spellerberg B, Cubero J and Roberts AV, 2000. European Network for characterisation and evaluation of the genus Rosa germplasm. Acta Hortic. 508: 341-344.

Book:

• Roberts AV, Debener, T and Gudin S (2003) Encyclopedia of Rose Science (3 volumes). Elsevier, San Diego.

Contributions To Books From 2000:

• Thorpe T, Stasolla C, Yeung EC, Roberts AV and George EF (2008). The components of plant tissue culture media II: organic additions, osmotic and pH effects, and support systems. In: EF George, MA Hall, and G-J De Klerk (Eds) Plant Propagation by Tissue Culture Vol 1. 3rd Edition. Dordrecht, Springer, pp 115-173.
• Sarasan V Ramsay MM and Roberts AV (2005) Rescue of endangered palms by in vitro methods: the case of ‘bottle palm'. In: S.M. Jain and P.K. Gupta (Eds.) Protocols in somatic embryogenesis in woody plants. Forestry Sciences Series Vol 7. Kluwer Academic Publishers, Dordrecht, pp , pp 267-274.
• Sarasan V and Roberts AV (2004) In vitro chromosome doubling. In: RM Goodman (Ed.) Encyclopedia of Plant and Crop Science. Marcel Dekker Inc., New York pp572-575.
• Roberts AV and Lewis R (2003) Mutation. In: AV Roberts, T Debener, and S Gudin. Encyclopedia of Rose Science (3 volumes). Elsevier, San Diego, pp 312-318.
• Roberts AV and Blake PS (2003) Floral induction. In: AV Roberts, T Debener, and S Gudin. Encyclopedia of Rose Science (3 volumes). Elsevier, San Diego, pp 381-386.
• Roberts AV and Schum A (2003) Cell tissue and organ culture. In: AV Roberts, T Debener, and S Gudin. Encyclopedia of Rose Science (3 volumes). Elsevier, San Diego, pp 57-66.
• Roberts AV, 2001. Relationship between floral and vegetative development in roses. Historic Roses Group journal. Number 22, pp 7-10.
• Mottley J, Yokoya K, Roberts AV, 2000. D-flowering, the flow cytometry of plant DNA. In: R. Diamond and S. DeMaggio (Eds.), In Living Color: Protocols in Flow Cytometry and Cell  Sorting. Springer-Verlag, Berlin/Heidelberg, pp 391-420.

Patents:

• Roberts AV, 1988.  Micropropagation process.  European Patent Application   0252617.
• Roberts AV, 1993.  Micropropagation process.  United States Patent Number   5,168,059.

• External examiner for 20 PhDs in UK, France and Ireland.
• External examiner for the International MSc Degree Programme in Horticulture at the University of Hannover (2007).