IAWA journal / International Association of Wood Anatomists (IAWA J)

Publisher: International Association of Wood Anatomists, Brill Academic Publishers

Journal description

Current impact factor: 0.96

Impact Factor Rankings

2015 Impact Factor Available summer 2015
2013 / 2014 Impact Factor 0.957
2012 Impact Factor 0.795
2011 Impact Factor 1.042
2010 Impact Factor 1.239
2009 Impact Factor 0.825
2008 Impact Factor 1
2007 Impact Factor 0.687
2006 Impact Factor 0.667
2005 Impact Factor 0.537
2004 Impact Factor 0.734
2003 Impact Factor 0.667
2002 Impact Factor 0.677
2001 Impact Factor 0.868
2000 Impact Factor 0.738
1999 Impact Factor 0.722
1998 Impact Factor 0.526
1997 Impact Factor 0.508
1996 Impact Factor 0.409
1995 Impact Factor 0.232
1994 Impact Factor 0.23
1993 Impact Factor 0.033

Impact factor over time

Impact factor

Additional details

5-year impact 1.33
Cited half-life 0.00
Immediacy index 0.15
Eigenfactor 0.00
Article influence 0.36
Website IAWA Journal - International Association of Wood Anatomists website
Other titles IAWA journal
ISSN 0928-1541
OCLC 28238907
Material type Periodical
Document type Journal / Magazine / Newspaper

Publisher details

Brill Academic Publishers

  • Pre-print
    • Author can archive a pre-print version
  • Post-print
    • Author can archive a post-print version
  • Conditions
    • Pre-print can only be deposited after acceptance for peer-review
    • Author's post-print and Publisher's version/PDF on author's personal website
    • Author's post-print on institutional website or institutional repository
    • Must link to publisher version
    • Published source must be acknowledged
  • Classification
    ​ green

Publications in this journal

  • IAWA journal / International Association of Wood Anatomists 01/2015; 36(2):167-185. DOI:10.1163/22941932-00000094
  • [Show abstract] [Hide abstract]
    ABSTRACT: The anatomical and chemical characteristics of reaction wood (RW) were investigated in Liriodendron tulipifera Linn. Stems of seedlings were artificially inclined at angles of 30 (RW-30), 50 (RW-50) and 70° (RW-70) from the vertical, and compared with normal wood (NW) from a vertical seedling stem. The smallest values for the wood fibre length and vessel number were observed in RW-50. The pit aperture angle was less than 10° in RW-30 and RW-50, in which reduced lignin content was observed in the S2 layer of the wood fibres. An increase in the glucose content and a decrease in the lignin and xylose content was observed in RW-50. The stem inclination angle affected the degree of RW development with regard to anatomical and chemical characteristics: the severest RW was observed in RW-50, followed by RW-30. RW-70 was similar in anatomical and chemical characteristics to NW, apparently because the inclination was too strong to enable recovery of its original position. In this case a vertical sprouting stem was formed to replace the inclined stem.
    IAWA journal / International Association of Wood Anatomists 12/2014; 35(4):463-475. DOI:10.1163/22941932-00000078
  • [Show abstract] [Hide abstract]
    ABSTRACT: Microscopic wood identifications were performed on five Buddhist temple structures and on one secular building located in Sikkim, an Indian state in the Eastern Himalayas. In all, twenty wood species were identified, two of which - Michelia (Magnolia) doltsopa and Picea cf. spinulosa - were considered in more detail. Building type, specific physical and mechanical properties of the wood species, local availability, and religious considerations were apparently the leading criteria for timber selection.
    IAWA journal / International Association of Wood Anatomists 12/2014; 35(4):444-462. DOI:10.1163/22941932-00000077
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    ABSTRACT: The formation of reaction wood is an adaptive feature of trees in response to various mechanical forces. In gymnosperms, reaction wood consists of compression wood (CW) and opposite wood (OW) that are formed on the underside and upperside of bent trunks and branches. Although reaction wood formed in bent trunks has been extensively investigated, relatively little has been reported from conifer branches. In this study SilviScan® technology was used to characterize radiata pine branches at high resolution. Compared to OW formed in the branches, CW showed greater growth, darker colour, thicker tracheid walls, higher coarseness, larger microfibril angle (MFA), higher wood density, lower extensional stiffness and smaller internal specific surface area. However, tracheids of CW were similar to those of OW in their radial and tangential diameters. These results indicated that gravity influenced tracheid cell division and secondary wall formation but had limited impact on primary wall expansion. Furthermore, seasonal patterns of CW formation were not observed in the branches from cambial age 4 while earlywood and latewood were clearly separated in all rings of OW. The marked change of MFA during reaction wood formation suggested that branches could be ideal materials for further study of cellulose microfibril orientation.
    IAWA journal / International Association of Wood Anatomists 12/2014; 35(4):385-394. DOI:10.1163/22941932-00000073
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    ABSTRACT: Microdistribution of non-cellulosic polysaccharides in pit membranes of bordered pits (intertracheid pits between adjacent tracheids), cross-field pits (half bordered pits between tracheids and ray parenchyma cells) and ray pits (simple pits in nodular end walls of ray parenchyma cells) was investigated in mature earlywood of juvenile Scots pine and Norway spruce seedlings using immunocytochemistry combined with monoclonal antibodies specific to (1→4)-β-galactan (LM5), (1→5)-α-arabinan (LM6), homogalacturonan (HG, LM19, LM20), xyloglucan (LM15), xylan (LM10, LM11) and mannan (LM21, LM22) epitopes. Using phloroglucinol-HCl and KMnO4 staining, lignin distribution in pit membranes was also examined. Apart from cross-field pit membranes in Scots pine, all pit membranes observed showed a positive reaction for lignin with differences in staining intensity. Ray pit membranes showed strongest reaction with lignin staining in both species. Intensity of lignin staining in bordered pit membranes was stronger in Norway spruce than in Scots pine. With localization of non-cellulosic polysaccharide epitopes, Scots pine showed differences in cross-field pit membranes (rhamnogalacturonan-I (RGI), HG and xyloglucan epitopes) from bordered and ray pit membranes (RG-I and HG epitopes). In contrast, Norway spruce showed significant differences in ray pit membranes (RG-I, HG, xyloglucan, xylan and mannan epitopes) from bordered and cross-field pit membranes (HG and no/trace amount of RG-I epitopes). Distributional differences in HG epitopes depending on antibody type/membrane regions were also observed in cross-field pit membranes between the two species. Together, the results suggest that distribution patterns of lignin and non-cellulosic polysaccharides in pit membranes differ significantly between pit types and between Scots pine and Norway spruce. Compared with the same types of pit membranes in hardwoods, the results for Scots pine and Norway spruce (softwoods) differed significantly.
    IAWA journal / International Association of Wood Anatomists 12/2014; 35(4):407-429. DOI:10.1163/22941932-00000075