Characterization of carotenoid pigments from bacterial symbionts of soft-coral Sarcophyton sp. from North Java Sea

International Aquatic Research - Marine bacteria produce natural pigments; however, the ability of marine bacterial symbionts to produce natural pigments has been less studied. Marine bacteria...     

草莓品种对白粉病菌抗性的组织病理学研究

以4个生产上主栽草莓品种为试材,采用曲利苯兰透明染色法,系统研究了草莓白粉病菌在不同抗性草莓品种上侵染过程的组织学特征。结果表明,草莓白粉病菌的侵染过程可分为：分生孢子萌发、附着胞形成、侵入寄主产生吸器、菌丝扩展和分生孢子链产生。而草莓不同品种对白粉菌的抗性表现在附着胞产生后的各侵染阶段,随品种抗病性增强,病菌侵入率降低,吸器数目减少,菌丝扩展缓慢,分生孢子数目减少。     

Salinity effects on strawberry plants grown in rockwool. II. Fruit quality

Fruit development and quality in strawberry cv. Rapella were influenced by salinity (+NaCl) treatments applied to the roots of plants growing in rockwool under heated glasshouse conditions. As salinity increased from 2.5 to 8.5 mS cm-1, fruit yield decreased. Analysis of the fruit showed that the reduction in yield was due to reduced water content, reflected by increasing dry matter percentage (8.32% at 2.5 to 9.78% at 8.5 mS cm-1). The concentration of reducing sugars and acids remained the same on a dry-weight basis after salinity treatment but, on a fresh weight basis, the decreasing water content increased their relative concentrations. Salinity levels had no significant effect on instrumental texture and colour measurements. Sensory evaluation of the colour, texture and flavour of strawberries showed significant differences in colour and flavour but no difference in texture.