Search results for "bud"

Plant hormones and Agrobacterium tumefaciens strain 82.139 induce efficient plant regeneration in the cardenolide-producing plant Digitalis minor

2002

Summary Shoot formation in explants of Digitalis minor was achieved, through axillary bud proliferation and adventitious bud differentiation, by varying the amount and source of plant hormones. Shoot regeneration was also obtained after infection of D. minor with the wild-type Agrobacterium tumefaciens strain 82.139, which induced shooty tumours. These shoots were not transgenic, as revealed by nopaline assays and the use of a C58pMP90/T139GUS-INT strain harbouring the intron inactivated gusA gene. Plants were easily rooted and transplanted into the greenhouse. Shoot cultures of D. minor accumulated up to 226 μg cardenolides per g dry mass when cultured on agar-solidified medium. Cardenolid…

Plant regeneration from juvenile and adult Anthyllis cytisoides, a multipurpose leguminous shrub

1997

Summary Anthyllis cytisoides , a legume shrub used for afforestation and reclamation of degraded Mediterranean areas, was successfully micropropagated from expiants of juvenile (cotyledonary nodes and apical buds) and adult origin (axillary buds). Multiple shoot formation was dependent on the presence of benzyladenine in the induction medium. Of the salt formulation and expiants examined, the higher proliferation rates were obtained when axillary buds from adult plants were cultured on a modified Schenk and Hildebrandt medium. Following the preferred protocol, shoot yield reached values greater than 100 shoots per expiant. Plants were easily rooted and transplanted into greenhouse.

Micropropagation of juvenile and adultDigitalis obscura and cardenolide content of clonally propagated plants

1991

Cultures ofDigitalis obscura L. were established from axillary buds of mature plants or leaves of seedlings obtained under aseptic conditions. Explants were cultured on Murashige and Skoog medium containing benzyladenine and/or naphthaleneacetic acid. Shoot proliferation from axillary buds was not affected by seasonal fluctuations in the stock plants and increased relative to the cytokinin concentration, but auxin reduced the multiplication rate. Differentiation of somatic embryos and adventitious buds from cultured leaves required naphthaleneacetic acid alone or combined with benzyladenine, respectively. Cardenolide pattern and content of the regenerated plants were determined by high perf…

Micropropagation of Lavandula latifolia through nodal bud culture of mature plants

1996

Cultures of Lavandula latifolia Medicus were established from axillary buds of mature field-grown plants. Explants were initially cultured on media with two different macronutrient combinations and benzyladenine or kinetin added either individually or with naphthaleneacetic acid. Subsequently, explants were subcultured in Murashige and Skoog medium supplemented with 20% coconut milk, 0.57 μM indoleacetic acid and 8.88 μM benzyladenine. Shoot proliferation from axillary buds was not affected by seasonal fluctuations in the stock plants but depended on the macronutrient composition and on the type and concentration of cytokinin tested. Best results were obtained in explants initially cultured…

Magma and volatile supply to post-collapse volcanism and block resurgence in Siwi caldera (Tanna Island, Vanuatu arc)

2011

Siwi caldera, in the Vanuatu arc (Tanna island), is a rare volcanic complex where both persistent eruptive activity (Yasur volcano) and rapid block resurgence (Yenkahe horst) can be investigated simultaneously during a post-caldera stage. Here we provide new constraints on the feeding system of this volcanic complex, based on a detailed study of the petrology, geochemistry and volatile content of Yasur-Siwi bulk-rocks and melt inclusions, combined with measurements of the chemical composition and mass fluxes of Yasur volcanic gases. Major and trace element analyses of Yasur-Siwi volcanic rocks, together with literature data for other volcanic centers, point to a single magmatic series and p…

Kuolemattomuuden saavuttaminen : Sangharakshitan runoelman 'Hercules and the Birds' tulkinta Paul Ricoeurin tulkintateoriaa soveltaen

1997

Transformation of the agricultural financial system in the age of globalisation

2017

The paper is an attempt to address the advantages and risks connected with the wave of financial globalisation, with a focus on its impact on financial policy in European agriculture. The aim of the paper is to identify the basic conditions of the functioning and change of the financial system of agriculture under the conditions of the globalisation of financial markets. Financial globalisation, also referred to as financial integration or openness, is understood as an increase in global ties and interdependences caused by capital flows. Potentially, globalisation can bring a lot of benefits, which are manifested in an acceleration of economic growth and decreased fluctuation in consumption…

Les budgets de la ville de Chartres au 18e siècle

1993

National audience

STREAMLINING THE BUDGET PROCESS BY PRIORITIZING PUBLIC INVESTMENT PROJECTS

2014

The substantiation of the state budget for 2014 has also considered some measures to improve budget planning activities by prioritizing public investment projects. The prioritizing approach of public investment projects in the budget process is a particularly important and complex one, involving a set of coherent and responsible evaluation, selection and prioritization activities of such projects based on a well defined prioritizing criteria and mechanism. It was started in 2012, unfortunately not as an undertaking of public decision makers in Romania, but as a requirement of the World Bank and International Monetary Fund in order to improve the budget process. The reason is the fact that n…

The effects of fiscal policies on the economic growth in Romania

2017

This paper intends to examine the results of fiscal policy implementation in Romania, their impact on economic growth and how fiscal policies have influenced the growth of budgetary deficits. Our objective is to highlight and explore efficient fiscal consolidation strategies that can ensure a stable economic growth through sustainable public finances. The methodology consists in analysing the information provided by national and international financial institutions, comparing it to past, proposed and assumed values, and examining the efforts and results. The conclusion we reached was that, in order to restore the sustainability of public finances, the need arises for considerable fiscal con…