Author: Laura E. Fischer Walter
Publisher:
ISBN:
Category :
Languages : en
Pages : 100

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Book Description

Author:
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 598

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Book Description

Author: Hans Lambers
Publisher: Springer Science & Business Media
ISBN: 1475728557
Category : Science
Languages : en
Pages : 565

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Book Description
This textbook is remarkable for emphasising that the mechanisms underlying plant physiological ecology can be found at the levels of biochemistry, biophysics, molecular biology and whole-plant physiology. The authors begin with the primary processes of carbon metabolism and transport, plant-water relations, and energy balance. After considering individual leaves and whole plants, these physiological processes are then scaled up to the level of the canopy. Subsequent chapters discuss mineral nutrition and the ways in which plants cope with nutrient-deficient or toxic soils. The book then looks at patterns of growth and allocation, life-history traits, and interactions between plants and other organisms. Later chapters deal with traits that affect decomposition of plant material and with plant physiological ecology at the level of ecosystems and global environmental processes.

Author: Dwight Edward Adams
Publisher:
ISBN:
Category :
Languages : en
Pages : 90

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Book Description

Author: John Dighton
Publisher: CRC Press
ISBN: 0824755251
Category : Science
Languages : en
Pages : 420

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Book Description
Takes the Novel Approach of viewing the role of fungi from the perspective of ecosystem functions. Addressing the main processes occuring in ecosystems and showing where and how fungi are critical, this book will help readers gain a better understanding of the role of fungi in shaping ecosystems.

Author: Sally E. Smith
Publisher: Springer Science & Business Media
ISBN: 9401712840
Category : Science
Languages : en
Pages : 322

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Book Description
This book is highly recommended on the basis of the following points: - The editors are highly regarded in the field of mycorrhizal biology and one is co-author of the most comprehensive textbook on mycorrhizas; - Chapters by international experts based on invited presentations at the 3rd International Conference on Mycorrhizas, supplemented by invited chapters on special topics; - Mycorrhizas are being increasingly recognised as ubiquitous plant/fungal symbioses, with the potential to influence the function and ecology of around 90% of all land plants; perhaps the most common and also ancient terrestrial symbioses in existence; - This book has a broad coverage of biology of symbioses between mycorrhizal fungi and plants, especially ecto- and arbuscular mycorrhizas (other recent texts have focused mainly on arbuscular mycorrhizal symbioses); - Forward-looking review chapters by keynote speakers including an overview of research challenges for the future; - Up-to-date research focus; - Coverage includes: molecular diversity and detection of mycorrhizal fungi; cellular and molecular interactions between the symbionts; physiology of the interactions; implications of the symbioses for ecosystem processes, including agriculture; - Several complementary chapters on some topics, ensuring that different perspectives are presented (recent edited volumes have had a smaller group of authors and hence narrower focus); - Readership from advanced undergraduate students in biology (particularly plant science), postgraduate students and researchers in universities and government agencies.

Author: Deborah Louise Stout
Publisher:
ISBN:
Category :
Languages : en
Pages : 134

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Book Description

Author:
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 1028

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Book Description

Author: Said Ahmad Damhoureyeh
Publisher:
ISBN:
Category :
Languages : en
Pages : 264

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Book Description

Author: Sally Sue Tucker
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description
The Konza Prairie in northern Kansas, USA contains over 550 vascular plant species; of which, few have been closely studied. These species are adapted to environmental stress as imposed by variable temperature, precipitation, fire, and grazing. Understanding which plant traits relate to drought responses will allow us to both predict drought tolerance and potential future shifts in plant community composition from changes in local climate. Morphological and physiological measurements were taken on 121 species of herbaceous tallgrass prairie plants grown from seed in a growth chamber. Gas exchange measurements including maximum photosynthetic rate, stomatal conductance to water vapor, and intercellular CO[subscript]2 concentration were measured. All plants were exposed to a drought treatment and were monitored daily until stomatal conductance was zero. At this point, critical leaf water potential ([Psi][subscript]crit), an indicator of physiological drought tolerance was assessed. Other measurements include root length, diameter, volume, and mass, leaf area, leaf tissue density, root tissue density, and root to shoot ratio. Traits were compared using pair-wise bivariate analysis and principal component analysis (PCA). A dichotomy was found between dry-adapted plants with thin, dense leaves and roots, high leaf angle, and highly negative [Psi][subscript]crit and hydrophiles which have the opposite profile. A second axis offers more separation based on high photosynthetic rate, high conductance rate, and leaf angle, but fails to provide a distinction between C[subscript]3 and C[subscript]4 species. When tested independently, grasses and forbs both showed drought tolerance strategies similar to the primary analysis. Matching up these axes with long term abundance data suggests that species with drought tolerance traits have increased abundance on Konza, especially in upland habitats. However, traits that relate to drought tolerance mirror relationships with nutrient stress, confounding separation of low water versus low nutrient strategies. My results not only illustrate the utility of morphological and physiological plant traits in classifying drought responses across a range of species, but as functional traits in predicting both drought tolerance in individual species and relative abundance across environmental gradients of water availability.