Structural and functional features of the rosaceae determining passive immunity to fungal infections

Abstract

With the help of modern microscopic methods of screening of the surface tissues of leaves and fruits of plants of the Apple subfamily (Maloideae): Apple (MalusMill.), pear (PyrusL.), quince (CydoniaMill.), medlar (MespilusL.) to model an object, and made before, the first attempts to explain the dependence of the susceptibility with the mycosis from the microstructural features. From the phytopathological studies and literature analyzed the species composition of fungi, causing loss of leaves and fruit of Apple trees in southern Russia. Outdoor, making pathogens with different parasitism are common pathogens, more reliable, more presented in the Mespilusgermanica. Higher, compared to the Apple and pear, a complex resistance to fungal diseases is found in the quince and medlar. Resistance to the first stage of the pathological process associated with such a device has, calmiramar university fruits and stomata in the abaxial epidermis of the leaves. Ulichnye cracks the leaves of the medlar - narrow, with raised growths on the surface of the fruit - now the structure of the cuticular layer.