Photoperiodism in the Plant Kingdom

Nature ◽  
1939 ◽  
Vol 143 (3616) ◽  
pp. 301-302 ◽  
Author(s):  
R. O. WHYTE ◽  
M. A. OLJHOVIKOV
Keyword(s):  
Plant Kingdom

scholarly journals Towards a scientific status for micromolecular Systematics

1980 ◽  
Vol 10 (4) ◽  
pp. 845-862 ◽  
Author(s):  
Otto R. Gottlieb
Keyword(s):  
Information Retrieval ◽  
Secondary Metabolites ◽  
Shikimate Pathway ◽  
Oxidative Enzymes ◽  
Natural Classification ◽  
Plant Kingdom ◽  
Ecological Implications ◽  
Scientific Status ◽  
Entire Plant ◽  
Retrieval Device

Abstract While different biosynthetic groups of secondary metabolites (micromolecules) rarely accumulate in the same plant species, one such group may replace another in morphologically related taxa. The use of micromolecules as general systematic markers of the plant kingdom thus requires unifying postulates concerning their evolution patterns. Two such postulates — contraction of the shikimate pathway and blocking of oxidative enzymes — are illustrated with the aid of systematic considerations on the genera Aniba (Lauraceae) and Derris-Lonchocarpus (Leguminosae) which involve besides chemistry, morphology, ecology and geography. Extrapolation of the principles applied in these examples to the entire plant kingdom seems possible, an important fact, due to the ecological implications of micromolecules. In this sense, the paper opens the way, rather than simply to a more "natural" classification, to an information retrieval device of ecologically relevant facts about plants.

The Plant Kingdom

2019 ◽  
pp. 25-51
Author(s):  
Spyridon E. Kintzios
Keyword(s):  
Plant Kingdom

scholarly journals Nonsymbiotic haemoglobins in plants.

1999 ◽  
Vol 46 (2) ◽  
pp. 431-445 ◽  
Author(s):  
A W Sowa ◽  
P A Guy ◽  
S Sowa ◽  
R D Hill
Keyword(s):  
Temporal Pattern ◽  
Globin Genes ◽  
Regulation Of Expression ◽  
Oxygen Stress ◽  
Physiological Functions ◽  
Plant Kingdom ◽  
General Aspects

General aspects regarding the presence of nonsymbiotic haemoglobin in plants are presented with the emphasis on those related to its function. As it becomes apparent that the nonsymbiotic haemoglobins are widespread across the plant kingdom and that they represent a more primitive and evolutionary older form of the plant globin genes, the question of their function becomes more attractive. While the physiological functions of the symbiotic haemoglobins in plants are well understood, almost nothing is known about their nonsymbiotic predecessors. Therefore, the known and hypothetical functions of haemoglobins in various systems are described along with information concerning properties and the regulation of expression of the nonsymbiotic haemoglobins. Interestingly, a number of nonsymbiotic haemoglobins have been shown to be hypoxia-inducible. The spatial and temporal pattern of this induction in barley may suggest that it is an integral part of the plants response to limiting oxygen stress.

scholarly journals Polar Expansion Dynamics in the Plant Kingdom: A Diverse and Multifunctional Journey on the Path to Pollen Tubes

Plants ◽  
2013 ◽  
Vol 2 (1) ◽  
pp. 148-173 ◽  
Author(s):  
David Domozych ◽  
Chelsea Fujimoto ◽  
Therese LaRue
Keyword(s):  
Pollen Tubes ◽  
Plant Kingdom
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