Grant No.
378/01.10.2007
Project type
PN-II-ID-PCE-2007-1
Funded
State Budget -Unitatea Executiva Pentru Finantarea Īnvatamantului Superior si a Cercetarii Stiintifice Universitare
Value
1,000,000 lei
Duration
October 2007 - September 2010
Contracting Authority
Unitatea Executiva Pentru Finantarea Īnvatamantului Superior si a Cercetarii Stiintifice Universitare
Contractor
University of Agricultural Sciences and Veterinary Medicine
Project Manager
Gica GRADINARIU, PhD
Research Team
Gheorghii CIOBOTARI, PhD
Aliona Morariu, PhD
Cristina Zlati, PhD student
Caulet Raluca Petronela, PhD student
Brinza Maria, PhD student
IN VITRO AND IN VIVO RESEARCHES REGARDING THE ROOTSTOCK-SCION INTERACTION FOR THE EARLY DETECTION OF INCOMPATIBILITY BIOMARKERS IN FRUIT TREES
PROJECT SUMMARY
Fruit trees are usually formed by a combination of two individuals: the rootstock that provides the root system and the scion that produces the commercial crop. In order for that combination to be successful, a good union between scion and rootstock is necessary. The mechanism, in which incompatibility is expressed, is not clear and several hypotheses have been advanced in an attempt to explain incompatibility. The majority of hypothesis referred to an early stage of development has been related to herbaceous systems. However, few studies have been made on early establishment in woody plants, where in many cases incompatibility is manifested by the breaking of the trees at the point of the union particularly when they have been growing for some years generally, a graft union could be considered successful and complete when several functional phloem and xylem connections cross the graft interface. However, incompatible grafts can grow for several years without any external symptom of incompatibility, indicating the presence of functional vascular connections. The delayed appearance of the symptoms increases the time required for detection of graft compatibility and slows down new rootstock selection programs. The scope of the proposed project is to investigate the possible mechanisms influencing the scion/rootstock interaction in the view of development and application of biochemical markers for the early detection of graft compatibility. The underlying mechanisms of graft incompatibility will be assessed in a comparative study of scion/rootstock interactions with different degrees of compatibility. Biochemical, eco-physiological and structural aspects of scion/rootstock interaction will be investigated in order to increase our knowledge of physiological processes that control the graft compatibility in response to environmental stresses.
"Ion Ionescu de la Brad" UNIVERSITY OF AGRICULTURAL SCIENCES AND VETERINARY MEDICINE FROM IASI
FACULTY OF HORTICULTURE
GRANT PN-II-ID-PCE-2007-1
WITH TITLE
"Ion Ionescu de la Brad" UNIVERSITY OF AGRICULTURAL SCIENCES AND VETERINARY MEDICINE FROM IASI
FACULTY OF HORTICULTURE