клональное микроразмножение

Induction of Direct Organogenesis in the Culture of Mature Embryo in Maize

Regeneration of plants in vitro through direct organogenesis allows the avoidance of somaclonal variation. The aim of our study was the induction of direct organogenesis in the culture of mature embryo in maize lines created at Saratov State University: ATTM (bm, wx, y), ATTM (bm, y), ATTM (bm, g, V-type CMS), AT-3 (4n). These lines are characterized by genetic predisposition to parthenogenesis. The mature embryos isolated from sterile grains were used as a primary explant.

Introduction to Culture in vitro of Corn Parthenogenetic Lines

Many modern selection technologies are based on the use of haploid plants as a starting material. The spontaneous frequency of haploid development is very low (0.01–0.1%). In this regard, the creation of plant forms with increased frequency of parthenogenesis is important. The collection of corn lines with an increased frequency of haploid plants in the progeny was created at the Department of Genetics of the Saratov State University. High costs are required for maintain of a plant collections in the field.

Clonal Micropropagation of Paeonia tenuifolia L.

Paeonia tenuifolia is one of the most attractive and needy of pro- tection species among endangered plants of Saratov region. Modern methods of biotechnology, in some case plant clonal micropropaga- tion, are increase efficiency of secured plant species propagation ex situ. There is a review the progress made in peony micropropagation and it is present short applicatory observations. Comprehensive refer- ences about Paeonia species in the whole were analyzed. An effective record of P. tenuifolia clonal micropropagation was composed.

Сохранение видов и сортов растений в коллекции in vitro Ботанического сада Саратовского госуниверситета

В ботаническом саду СГУ создана коллекция in vitro экономически важных многолетних культур, а также ведется активная деятельность по созданию коллекции редких и исчезающих видов растений Саратовской области. В настоящее время коллекционный фонд in vitro насчитывает 107 образцов 60 видов 48 родов, принадлежащих к 26 семействам покрытосеменных растений, из которых 26 видов 21 рода 14 семейств являются охраняемыми видами Саратовской области.