Functional Plant Biology

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EcoMeristem, a model of morphogenesis and competition among sinks in rice. 1. Concept, validation and sensitivity analysis
Functional Plant Biology - Tập 33 Số 4 - Trang 309 - 2006
Delphine Luquet, Michaël Dingkuhn, Hae Koo Kim, L. Tambour, Anne Clément‐Vidal
Because of rapid advances in functional genomics there is an increasing demand for models simulating complex traits, such as the physiological and environmental controls of plant morphology. This paper describes, validates and explores the behaviour of the structural–functional model EcoMeristem, developed for cereals in the context of the Generation Challenge Program (GCP; CGIAR). EcoMeri...... hiện toàn bộ
Viewpoint: Isotopic fractionation by plant nitrate reductase, twenty years later
Functional Plant Biology - Tập 33 Số 6 - Trang 531 - 2006
Guillaume Tcherkez, Graham D. Farquhar
Plant nitrate reductase, the enzyme that reduces nitrate (NO3–) to nitrite (NO2–), is known to fractionate N isotopes, depleting nitrite in 15N compared with substrate nitrate. Nearly 20 years ago, the nitrogen isotope effect associated with this reaction was found to be around 1.015. However, the relationships between the isotope effect and the mechanism of the reaction have not yet bee...... hiện toàn bộ
Effects of Low Water Potentials on Transpiration and Photosynthesis in Mitchell Grass (Astrebla lappacea)
Functional Plant Biology - Tập 1 Số 4 - Trang 539 - 1974
David Doley, NBA Trivett
Gas-exchange studies were carried out on potted Mitchell grass plants raised in the glasshouse and in growth cabinets. Provided that nutrition was adequate, the low irradiance of the growth cabinets did not impair the photosynthetic capacity at levels approaching full sunlight. The optimum temperature for net photosynthesis was in excess of 40�C. Close linear relationships were established...... hiện toàn bộ
Role of geranylgeranyl reductase gene in organ development and stress response in olive (Olea europaea) plants
Functional Plant Biology - Tập 36 Số 4 - Trang 370 - 2009
Leonardo Bruno, Adriana Chiappetta, Innocenzo Muzzalupo, Cinzia Gagliardi, Domenico Iaria, Alessandro Bruno, Maria Greco, Donato Giannino, Enzo Perri, Maria Beatrice Bitonti
The NADPH-dependent geranylgeranyl reductase gene (OeCHLP) was characterised in olive (Olea europaea L.). OeCHLP catalyses the formation of carbon double bonds in the phytolic side chain of chlorophyll, tocopherols and plastoquinones and, therefore, is involved in metabolic pathways related to plant productivity and stress response, besides to nutritional value of its products. The nuclear...... hiện toàn bộ
The superhydrophilic and superoleophilic leaf surface of Ruellia devosiana (Acanthaceae): a biological model for spreading of water and oil on surfaces
Functional Plant Biology - Tập 36 Số 4 - Trang 339 - 2009
Kerstin Koch, Inga Christina Blecher, Gabriele M. König, Stefan Kehraus, Wilhelm Barthlott
Most leaves of plants are hydrophobic or even superhydrophobic. Surprisingly the leaves of the tropical herb of Ruellia devosiana Makoy ex E. Morr. Hort. (Acanthaceae) are superamphiphilic. Water droplets (10 µL) spread to a film with a contact angle of zero degree within less than 0.3 s. Such surfaces with a high affinity to water are termed superhydrophilic. Droplets of oil applied on ...... hiện toàn bộ
Subdivision of C4-Pathway Species Based on Differing C4 Acid Decarboxylating Systems and Ultrastructural Features
Functional Plant Biology - Tập 2 Số 2 - Trang 111 - 1975
MD Hatch, T. Kagawa, Stewart Craig
A selection of C4 species was surveyed to determine the relationship between their content of C4 acid decarboxylating enzymes, the activities of several other enzymes implicated in the C4 pathway, and their anatomical and ultrastructural features. The species examined clearly fell into three groups according to whether they contained high levels of either NADP malic enzyme (EC 1.1.1.40), p...... hiện toàn bộ
Modelling Stomatal Behaviour and and Photosynthesis of Eucalyptus grandis
Functional Plant Biology - Tập 17 Số 2 - Trang 159 - 1990
R. Leuning
Stomatal conductances, CO2 assimilation, transpiration and intercellular CO2 mol fractions of Eucalyptus grandis leaves were measured in the field using a portable, controlled environment cuvette. Test leaves were subjected to a range of temperatures, humidities, photon irradiances and external CO2 mol fractions. An empiral function, gsw = g0 + g1 Ahs/(cs-I'), was able to account for stead...... hiện toàn bộ
An Empirical Model of Stomatal Conductance
Functional Plant Biology - Tập 11 Số 3 - Trang 191 - 1984
Graham D. Farquhar, Siu‐Chung Wong
An empirical model of stomatal conductance is presented. The predictions of conductance correlate with experimental determinations of the responses to several kinds of short-term and long-term perturbations, including irradiance, temperature, CO2 and O2 partial pressures, and leaf age and nitrogen nutrition. The model is not mechanistic and cannot account for the observed functioning of st...... hiện toàn bộ
Relationship between seed morphological traits and wind dispersal trajectory
Functional Plant Biology - Tập 46 Số 12 - Trang 1063 - 2019
Quanlai Zhou, Zhimin Liu, Zhiming Xin, Stefani Daryanto, Lixin Wang, Jianqiang Qian, Yongcui Wang, Wei Liang, Xuanping Qin, Yingming Zhao, Xinle Li, Xue Cui, Minghu Liu
The structure and dynamics of plant populations and communities are largely influenced by seed dispersal. How the wind dispersal trajectory of seeds shifts with differences in seed morphology remains unknown. We used a wind tunnel and video camera to track the dispersal trajectory of seven species of Calligonum whose seeds have different kinds of appendages and other morphological traits,...... hiện toàn bộ
Alignment of Cortical Microtubules by Anisotropic Wall Stresses
Functional Plant Biology - Tập 17 Số 6 - Trang 601 - 1990
R. E. Williamson
Anisotropic mechanical forces exist in the walls of all turgid plant cells except those of spherical unicells. These forces potentially offer the cell important directional information regarding its major and minor axes, and the more complicated force patterns expected in multicellular organs could offer location-specific information. A mechanism is proposed to measure directional forces i...... hiện toàn bộ
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