Evolutionary network genomics of wood formation in a phylogenetic survey of angiosperm forest trees

2020 ◽  
Vol 228 (6) ◽  
pp. 1811-1823
Author(s):  
Matthew Zinkgraf ◽  
Shu‐Tang Zhao ◽  
Courtney Canning ◽  
Suzanne Gerttula ◽  
Meng‐Zhu Lu ◽  
...  
Keyword(s):  
Wood Formation ◽  
Forest Trees ◽  
Evolutionary Network

Wood formation in forest trees: from Arabidopsis to Zinnia

1999 ◽  
Vol 4 (6) ◽  
pp. 203-204 ◽  
Author(s):  
N Chaffey
Keyword(s):  
Wood Formation ◽  
Forest Trees

Modeling transcriptional networks regulating secondary growth and wood formation in forest trees

2013 ◽  
Vol 151 (2) ◽  
pp. 156-163 ◽  
Author(s):  
Lijun Liu ◽  
Vladimir Filkov ◽  
Andrew Groover
Keyword(s):  
Secondary Growth ◽  
Wood Formation ◽  
Transcriptional Networks ◽  
Forest Trees

Directionality of compression wood in balsam fir wave forest trees

1990 ◽  
Vol 20 (8) ◽  
pp. 1143-1148 ◽  
Author(s):  
Alexander Robertson
Keyword(s):  
Compression Wood ◽  
Wood Formation ◽  
Balsam Fir ◽  
Forest Trees ◽  
Circular Distribution ◽  
Environmental Perturbations ◽  
Dormant Season ◽  
Snow Loading ◽  
Very High

Wind is often cited as one of the main causes of compression wood formation. While many papers have alluded to direction of compression wood, this paper provides a detailed circular statistical analysis of the angular distribution of compression-wood zones in balsam fir trees. Discs were sampled from trees in a balsam fir (Abiesbalsamea (L.) Mill.) wave forest in northwestern Newfoundland, from sapling to mature stages. The directionality, with respect to compass bearing, of compression-wood zones in basal discs was found to be initially randomly distributed around the pith, becoming unidirectional towards the northeast at about 10 mm from the pith. Random circular distribution of compression-wood zones mostly within 10 mm of the pith is interpreted as resulting from a combination of environmental perturbations, such as glaze and rain loading, and asymmetric crown growth due to competition. Because of the very high density of immature stands, wind turbulence is not expected to be a major factor stimulating compression wood in saplings. The role of snow loading, which causes bending of stems for long periods during the winter (dormant season), is uncertain. In older trees, i.e., beyond approximately 10 mm from the pith, compression wood gradually becomes directional towards the northeast, indicating that prevailing southwesterly winds are mainly responsible for compression-wood formation.

Forest Trees of North America

1880 ◽  
Vol 9 (234supp) ◽  
pp. 3730-3730
Author(s):  
Charles S. Sargent
Keyword(s):  
North America ◽  
Forest Trees

TWO NEW SEVERE LEAF SPOT DISEASE ON FOREST TREES OF JALGAON (MAHARASTRA) INDIA

2017 ◽  
Vol 23 (2) ◽  
Author(s):  
S. A. FIRDOUSI
Keyword(s):  
Leaf Spot ◽  
Fungal Disease ◽  
Leaf Spot Disease ◽  
Forest Trees ◽  
First Report ◽  
Spot Disease ◽  
Severe Leaf

During the survey of the forest fungal disease, of Jalgaon district, two severe leaf spot diseases on Lannae coromandelica and ( Ougenia dalbergioides (Papilionaceae) were observed in Jalgaon, forest during July to September 2016-17. The casual organism was identified as Stigmina lanneae and Phomopsis sp. respectively1-4,7. These are first report from Jalgaon and Maharashtra state.

Phänologische Trends bei den Waldbäumen in der Schweiz | Phenological trends regarding the forest trees in Switzerland

2005 ◽  
Vol 156 (6) ◽  
pp. 207-210 ◽  
Author(s):  
Claudio Defila
Keyword(s):  
Regional Differences ◽  
Early Growth ◽  
Horse Chestnut ◽  
Forest Trees ◽  
Spring Season ◽  
Arrival Times ◽  
The Past ◽  
Early Arrival ◽  
Southern Side ◽  
The Alps

Numerous publications are devoted to plant phenological trends of all trees, shrubs and herbs. In this work we focus on trees of the forest. We take into account the spring season (leaf and needle development) as well as the autumn (colour turning and shedding of leaves) for larch, spruce and beech, and,owing to the lack of further autumn phases, the horse chestnut. The proportion of significant trends is variable, depending on the phenological phase. The strongest trend to early arrival in spring was measured for needles of the larch for the period between 1951 and 2000 with over 20 days. The leaves of the horse chestnut show the earliest trend to turn colour in autumn. Beech leaves have also changed colour somewhat earlier over the past 50 years. The trend for shedding leaves, on the other hand, is slightly later. Regional differences were examined for the growth of needles in the larch where the weakest trends towards early growth are found in Canton Jura and the strongest on the southern side of the Alps. The warming of the climate strongly influences phenological arrival times. Trees in the forest react to this to in a similar way to other plants that have been observed (other trees, shrubs and herbs).

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