Inactivation of self-incompatibility following temperature pretreatments of styles inLilium longiflorum

✍ Scribed by J. E. Hopper; Peter D. Ascher; S. J. Peloquin

• Book ID: 104620633
• Publisher: Springer
• Year: 1967
• Tongue: English
• Weight: 380 KB
• Volume: 16
• Category: Article
• ISSN: 0014-2336
• DOI: 10.1007/bf00043457

✦ Synopsis

Incompatible (self) pollen tube growth in styles of six cultivars of L . longiflorum is strikingly influenced by treatment of the styles for six minutes in 50'C distilled water prior to pollination . In pretreated detached styles the incompatible pollen tubes reach lengths normally attained by compatible pollen whereas in untreated styles they grow to only approximately two-thirds the length normally reached by compatible tubes . Pretreatment at either 25'C or 45'C for six minutes does not affect incompatible pollen tube growth. Both compatible and incompatible tubes grow only a few millimeters into styles treated at 55'C for six minutes . Stigmatoid cells in these styles appear necrotic. Pretreatment of attached styles at 50°C for six minutes resulted in fruit set following self-pollination . Seed number per capsule ranged from 6 to 114 . Stylar pretreatment appears to be a highly promising approach to further investigation concerning the nature of the self-incompatibility reaction . It also appears to offer a suitable means of obtaining seed from self-incompatible plants .