sym 13-A Gene Conditioning Ineffective Nodulation in Pisum sativum.

Treatment of Pisum sativum (L.) cv. ;Sparkle' with ethyl methanesulfonic acid (EMS) produced a stable mutant, E135F, which forms small, white, ineffective nodules.

Pleiotropic Effects of brz: A Mutation in Pisum sativum (L.) cv ;Sparkle' Conditioning Decreased Nodulation and Increased Iron Uptake and Leaf Necrosis.

Treatment of Pisum sativum (L.) cv ;Sparkle' with ethylmethane sulfonic acid produced a stable mutant, E107, which forms few nodules. The mutant allele exhibits other pleiotropic properties including bronze necrotic spots on the leaflets and high accumulation of iron in the shoot.

Congo Red Absorption by Rhizobium leguminosarum.

Congo red absorption is generally considered a contraindication of Rhizobium. However, R. leguminosarum takes up the dye on yeast extract-mannitol agar.

The effect of propranolol on sympathetic nerve stimulation in isolated vasa deferentia.

(+/-)-Propranolol hydrochloride (0.5 mg kg(-1) twice daily, subcutaneously, for 3 days or approximately 2.4 mg kg(-1) daily, orally, for 21 days) failed to produce ptosis or to affect responses to transmural stimulation of isolated vasa deferentia removed from treated mice.