Molecular plant physiology

A.Y. 2017/2018
Overall hours
Learning objectives
Understanding of the molecular basis and the general aspects of physiological and biochemical mechanisms underlying plant growth and diversity as related to endogenous and exogenous factors, with special emphasis to environmental aspects and stress responses.
Expected learning outcomes
Critical understanding up to at molecular level of the physiological and biochemical aspects of plant growth differentiation and productivity, individuation of limiting factors and ways to overcome them. Understanding of the evolution of scientific knowledge in the area.
Course syllabus and organization

Single session

Lesson period
First semester
Course syllabus
Molecular aspect of plant Plant Physiology . Thermodynamics and kinetics of water uptake: Chemical potential of water, solute, chemical and pressure water potential, Water diffusion and aquaporins. Water pathways in plant. Transpiration, Water deficit. Water stress: structural (pressure potential) and metabolic answer. Osmo-regulation. Water deficit and signaling. Dehydration tolerance. Thermoregulation and water. Heath stress. Heath shock proteins. Low temperature stress. Productivity and Photosynthesis. Thermodynamic Yield of Photosynthesis and crop yield. Protection of photo-systems against light and ox /red. Potential, Photo inhibition. Physiological role of Photorespiration. Carbon fixation and C4 and CAM Plants. Thermodynamic and crop yield of these plants. Translocation of Photosynthates and starch biosynthesis. Role of stomata in Carbon flux. Oxygen uptake in plants. Physiologic role of respiration in plants: role in biosyntheses. Cyanide resistant mitochondrial oxygen uptake and its physiological role. Non mitochondrial uptake of oxygen (micro bodies, plasma membrane and cytoplasm). Active oxygen species in defence against pathogens. Plant Plasma-membrane and Physiology. Role of membrane transport in compartmentalization and homeostasis, energy conversion, signal transduction and plant mineral nutrition. Uptake of mineral nutrients: thermodynamics, kinetics and metabolic aspect. Role of mineral nutrients in plant physiology. Assimilation of nitrogen, sulphur and phosphate. Nutritional stress. Salt stress and effect of toxic elements. Morphogenesis. Role of plant morphogenesis in relation to environment. Plant cell differentiation and organogenesis. Geotropism. Photo-morphogenesis: the phyto-chromes. Plant growth regulators and hormones. Physiologic actions of hormones. Maturation and germination of seeds: metabolic and plant membrane reactivation during seed germination. Fruits ripening and senescence.
Teaching methods
Viene fornito su supporto elettronico tutto il materiale didattico utilizzato durante le lezioni.
Si consigliano i testi di Biochimica e Fisiologia delle piante:
- Biochimica e Biologia Molecolare delle Piante, BB Buchanan, W Gruissem, RL Jones, Zanichelli
- Fisiologia vegetale, L Taiz E Ziegler ed ital. Massimo Maffei Zanichelli
AGR/13 - AGRICULTURAL CHEMISTRY - University credits: 6
Lessons: 48 hours
upon appointment by E-mail
Dipartimento di Produzione Vegetale