Effects of protein inhibitors and auxin on nucleic Acid metabolism in peanut cotyledons.

Inhibition by auxins of 4-methyleneglutamic Acid synthesis in tissue cultures of peanut seeds.

Callus cultures of peanut (Arachis hypogaea L. cv Valencia Tennessee Red) cotyledons grown on Linsmaier and Skoog medium containing normal levels of auxin and cytokinin do not synthesize either 4-methyl-eneglutamic acid or 4-methyleneglutamine, which nonprotein amino acids are normally found in significant amounts in peanut plants. If mature peanut embryos (with cotyledons removed) are germinat...

Nucleic Acid and protein metabolism of senescing and regenerating soybean cotyledons.

An alternative to the leaf disk system for studies of the metabolism of senescence is described. The progress of senescence of soybean (Glycine max L.) cotyledons is arrested when the epicotyl is removed. Epicotyl removal at 16 or 17 days reversed the decline in nucleic acid, protein, and chlorophyll content in the cotyledon. Epicotyl removal at 18 days did not reverse the decline in the above ...

Nucleic Acid, Mitochondria, & Enzyme Changes in Cotyledons of Peanut Seeds during Germination.

EMBRYOGENESIS AND RHIZOGENESIS IN MATURE ZYGOTIC EMBRYOS OF OLIVE (OLEA EUROPAEA L.) CULTIVARS MISSION AND KRONEIKI

Organogenesis and neoformant plantlet production were studied by culturing the different parts of mature embryo including radicle and proximal and distal parts of cotyledon of Mission and Kroneiki cultivars. Different parts of embryos were cultures in OMc medium containing growth regulators, such as indole butyric acid (IBA) and 2-isopentenyl adenine (2-ip) or IBA and naphthalene acetic acid (N...

Auxin Polar Transport Is Essential for the Establishment of Bilateral Symmetry during Early Plant Embryogenesis.

We used an in vitro culture system to investigate the effects of three auxin polar transport inhibitors (9-hydroxyfluorene-9-carboxylic acid, trans-cinnamic acid, and 2,3,5-triiodobenzoic acid) on the development of early globular to heart-shaped stage embryos of Indian mustard (Brassica juncea) plants. Although the effective concentrations vary with the different inhibitors, all of them induce...