INVESTIGATION UPON MAIZE.

The Effect of X-Rays upon Dominant Mutation in Maize.

Changes in Growth and Chemical Defences upon Defoliation in Maize

ÐThe e€ect of defoliation on growth and on levels and allocation patterns of hydroxamic acids (Hx) in maize seedlings was evaluated 6 days after treatment. No signi®cant di€erences were found between defoliated and nondefoliated plants for the Hx concentration, relative Hx content and Hx-aglucone to Hxglucoside ratio in shoots, roots and root exudates, with the exception of Hx concentration in ...

T-DNA transfer to maize cells: histochemical investigation of beta-glucuronidase activity in maize tissues.

Agrobacterium tumefaciens is routinely used to engineer desirable genes into dicotyledonous plants. However, the economically important graminaceous plant maize is refractory to tumor induction by inoculation with virulent strains of A. tumefaciens. Currently, the only clearcut evidence for transferred DNA (T-DNA) transport from Agrobacterium to maize comes from agroinfection. To study T-DNA tr...

Investigation of the bottleneck leading to the domestication of maize.

Maize (Zea mays ssp. mays) is genetically diverse, yet it is also morphologically distinct from its wild relatives. These two observations are somewhat contradictory: the first observation is consistent with a large historical population size for maize, but the latter observation is consistent with strong, diversity-limiting selection during maize domestication. In this study, we sampled sequen...

UK Breastfeeding Helpline support: An investigation of influences upon satisfaction

BACKGROUND Helpline services have become an increasingly popular mode of providing community access to information and expert information and advice in the health and welfare sector. This paper reports on data collected from 908 callers to UK-based breastfeeding helplines. METHODS A mixed methods design was adopted utilising a structured interview schedule to elicit callers experiences of the...