An html textbook by Alice Bergfeld, Rolf Bergmann, and Peter Sengbusch, originally produced in German at the University of Hamburg. Scroll down for links to heavily illustrated pages in English on botanical history, plant anatomy, genetics, and more. Now hosted on a Michigan State University server.
This book is devoted to botany and covers topical issues in this diverse area of study. The contributions are designed for researchers, graduate students and professionals. The book also presents reviews of current issues in plant-environment interactions making it useful to environmental scientists as well. The book is organized in three sections. The first section includes contributions on responses to flood stress, tolerance to drought and desiccation, phytotoxicity to Chromium and Lead; the second has aspects of economic botany including a review of Smut disease in sugarcane and properties of plant extract used Tassaboount date juice; the last covers topical issues on morphogenesis and genetics on cotton fiber special cell, secretory glands Asphodelus aestivus flower ,pollen tube growth in Leucojum aestivum , morphological studies of Ardisia crenata complex, and hybrid lethality in the Genus Nicotiana.
Finding and eradicating invasive plants is a tough job that requires constant vigilance. County-scale maps that show where invasive plants are and where they have the potential to spread in the future are helping on-the-ground efforts to build the resilience of natural vegetation.
The lessons in this issue of Smithsonian in Your Classroom introduce the work of botanists and botanical illustrators, specifically their race to make records of endangered plant species around the world. “Very little of the world’s flora has been fully studied,” says one Smithsonian botanist, “and time is running out.” In the first lesson, students gets to know six endangered plants. They examine illustrations, photographs, and dried specimens of the plants as they consider this question: If a scientist can take a picture of a plant, are there advantages in having an illustration? They go on to consider some of the big questions that botanists themselves must ask: Which of these species are most in need of conservation efforts? Are any of these plants more worth saving than others?In the second lesson, the students try their own hands at botanical illustration, following the methods of a Smithsonian staff illustrator. All that is required for the lesson are pencils, markers, tracing paper, and access to a photocopier.
In this course, you will learn the basics of plant biology. The student will begin with plant anatomy, learning the names and functions of all of the parts of a plant, then move on to plant physiology, where you will learn about photosynthesis, growth, and reproduction. Next, the student will study plant evolution according to the fossil record and examine the diversity of plant life in existence today and how that diversity impacts global ecology. Upon successful completion of this course, the student will be able to: identify and describe the functions of the different cells, tissues, and organs that make up a plant; describe the major life processes in plants (photosynthesis, respiration, transpiration, growth and development, and reproduction) at the tissue, organ, cellular, and molecular level; explain the history and evolution of plants on earth; discuss plant diversity and identify the major characteristics of plant phylogenetic divisions; explain how plants fit into the global ecological system and why they are essential for life on earth. (Biology 306)
Teachers, learners and science enthusiasts are invited to explore Life on Earth and share their learning by building ToL treehouses and publishing them on the Tree of Life. Broadening our contributor base and audience is part of our efforts to create an open access digital library about biodiversity. The ToL provides four different ways of interacting with ToL learning resources, from the least interactive (browsing) to the most interactive (becoming a treehouse builder and creating ToL treehouse web pages).
Science Education Resource Center (SERC) at Carleton College
Drawings and visualizations are used to help participants conceptualize the location and steps involved in the light reactions of photosynthesis. The drawsing include light reactions of photosynthesis including location and steps for non-cyclic and cyclic photophosphorylation.
Plant growth regulators, including auxin, gibberellin, cytokinin, abscisic acid, and ethylene, are investigated in this learning activity to demonstrate how these chemicals (hormones) affect plant growth and development.
Plant water relations are presented in this learning activity to help participants understand the components of water potential, explain how water moves through plants, provide examples of plant adaptations to water stress, and have a general understanding of how water potential can be measured.