Fig. ( 1 ): Symptoms of an infected onion plants with IYSV in a commercial onion field and greenhouse . Fig. ( 1 -A‚B‚C‚D ) : IYSV Symptoms development in the field showing chlorotic‚ elongate ringed lesions on leaves and tip dieback (A) ‚ Straw-colored‚ lenticular or spindle -shaped lesions (B )‚ chlorotic‚ spindle-shaped lesions on onion leaf and spindle to diamond shaped lesions on the flower scapes (C‚D) . symptoms of IYSV in the greenhouse transmitted with virulifierous Thrips tabaci showing
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Botany Essay Questions 1. Pollination is a crucial process of how plants reproduce‚ in which the male sex cell of the flower‚ pollen‚ is transferred from the stamen to the carpel‚ or more specifically‚ from the anther to the stigma. Pollen grains are completely different and unique for each flower‚ they carry the male and female genetic information and it is split exactly 50/50. The transfer is carried out by pollinators‚ which include bees‚ wasps‚ flies‚ butterflies‚ moths‚ several species
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Animal and Plant cells consist of most of the same cell types‚ but the whole shape of the cell is quite different. An animal cell is a round‚ uneven shape‚ whereas the Plant cell has an affixed shape. They have a more of a rectangular shape. Chloroplast‚ Vacuole and the Cell wall are only found in Plant cells. The Chloroplast is the organelle for the whole system of Photosynthesis. Chloroplasts are found in mesophyll cells (which are found in the leaves) of green plants. They convert light into
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Plants That Can Move Inspire New Adaptive Structures http://www.usnews.com/science/articles/2011/02/23/plants-that-can-move-inspire-new-adaptive-structures Summary: Researchers at the University of Michigan and Penn State University have been studying a species of shape-changing plant that they believe can help them develop a new breed of structures that can twist‚ turn‚ bend‚ stiffen‚ and otherwise adapt to their environments. The Mimosa plant‚ which folds its leaves on contact through a phenomenon
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Phuong Nguyen 09/23/2013 OBHR 3310-008 Does diversity affect ethical decisions? Maintaining diversity and ethics practices is important to most businesses who want to gain the loyalty of employees and trust of consumers. Diversity is much more than one of several ethical issues. Ethics and diversity‚ in fact‚ have a multi-dimensional relationship that affects not only what issues we consider‚ but also the very process of engaging in ethical reflection.
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the pacific yew and the antimalarial drug‚ artermisinin‚ characterized from the sweet wormwood plant. Natural products exemplify the complexity and chemical diversity in nature. Many of which inspire the syntheses of novel compounds with an impressive potency against vicious diseases of today. Plants provide useful natural products. Evolution has already carried out a screening process whereby plants are more likely to survive if they synthesize potent compounds which deter animals or insects from
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foster an environment that is comfortable for all. We see the effect of this diversity mostly within our workforce. This has then caused a unique environment within the workforce that seeks and demands a climate that encompasses all the differences. Diversity can take many forms namely age‚ race‚ gender‚ religion‚ sexual orientation‚ mental and physical capabilities and ethnicity and culture are the main areas of diversity and have a continuous impact throughout our lives. Due to increasing difference
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reactions must take place for the substances of photosynthesis to be transported around the plant. energy is supplied to plant cells through respiration movement of substances occurs by diffusion‚ osmosis and active transport. Water and mineral ions must be supplied and conserved in the plant. cell wall makes plants have no mobility cell wall bring turgor pressure. Turgor pressure increased in ‘woody plants’ - with lignin. photosynthesis - is the process whereby radiant energy from the sun is
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Plant Tissues A mature vascular plant (any plant other than mosses and liverworts)‚ contains several types of differentiated cells. These are grouped together in tissues. Some tissues contain only one type of cell. Some consist of several. Meristematic The main function of meristematic tissue is mitosis. The cells are small‚ thin-walled‚ with no central vacuole and no specialized features. Meristematic tissue is located in • the apical meristems at the growing points of roots and stems. • the
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ammonia or nitrate dangerous 4. Nitrate reductase d. e. Describe the structure f. How is it activated g. How does it perform its job h. How is it regulated 5. How are the levels of nitrate diff in parts of a plant 6. What are steps of the assimilation of nitrogen 7. What are the two types of GOGAT and what’s the difference between each 8. What are the equations for the reactions that are catalyzed by i. j. GS k. GOGAT
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