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Stem Anatomy and Aspects of Development in Tomato

1964; Wiley; Volume: 51; Issue: 1 Linguagem: Inglês

10.2307/2440057

1537-2197

Neal P. Thompson, Charles Heimsch,

Plant Reproductive Biology

American Journal of BotanyVolume 51, Issue 1 p. 7-19 Article STEM ANATOMY AND ASPECTS OF DEVELOPMENT IN TOMATO† Neal P. Thompson, Neal P. Thompson Department of Botany, Miami University, Oxford, OhioPresent address: Department of Biology, Princeton University, Princeton, New Jersey.Search for more papers by this authorCharles Heimsch, Charles Heimsch Department of Botany, Miami University, Oxford, OhioSearch for more papers by this author Neal P. Thompson, Neal P. Thompson Department of Botany, Miami University, Oxford, OhioPresent address: Department of Biology, Princeton University, Princeton, New Jersey.Search for more papers by this authorCharles Heimsch, Charles Heimsch Department of Botany, Miami University, Oxford, OhioSearch for more papers by this author First published: 01 January 1964 https://doi.org/10.1002/j.1537-2197.1964.tb06593.xCitations: 16 †Based upon a thesis submitted by the first author to the Graduate School of Miami University in partial fulfillment of the requirements for the degree of Master of Arts. This study was supported in part by National Science Foundation Grant G–13248 to the second author. AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Abstract Aspects of anatomical development were correlated with internodal growth in tomato plants, variety 'Yellow Plum,' grown for more than 3 months. Internodal length was measured weekly in control plants and those harvested for anatomical study. Gross structure indicated progressive development with increasing age. Primary xylem and phloem first mature in distinct strands and the strands are joined laterally by procambium to form a continuous vascular cylinder. Primary phloem occurs on the outer periphery of the procambium between the early-formed vascular strands. Successive periclinal divisions in the procambium during internode elongation give rise to pronounced radial seriations of the cells. Procambial derivatives are included in the cylinder of thick-walled, lignified vascular cells that become prominent after elongation ceases. Secondary xylem is of greater radial width in the stem sectors which include protoxylem. During early secondary growth, vessels develop in the secondary xylem only in these sectors. Nucleate fibers and rays constitute the remainder of the secondary xylem. The rays exhibit an organization noted in other plants of reduced growth habit. Some of these interpretations do not agree with those described for tomato in earlier studies, and they are discussed in relation to pertinent aspects of development. Citing Literature Volume51, Issue1January 1964Pages 7-19 RelatedInformation