A histological and ultrastructural study of variegated leaf chimeras of Saintpaulia ionantha Wendl. and their regeneration in vitro.

Bibliographic Details
Main Author: Norris, Richard Eugene
Other Authors: Koehler, D. E. (degree committee member.), Morgan, D. L. (degree committee member.), Morgan, P. W. (degree committee member.)
Format: Thesis Book
Language:English
Published: 1981.
Subjects:
Online Access:Link to ProQuest Copy
Link to OAKTrust copy

MARC

Tag First Indicator Second Indicator Subfields
LEADER 00000ctm a2200000Ia 4500
001 in00000080148
005 20220104090815.0
008 820723s1981 xx a bm 000 0 eng d
035 |9 AAJ6721AM 
035 |a (OCoLC)08625120 
035 |a (OCoLC)8625120 
035 |a (OCoLC)ocm08625120 
040 |a TXA  |b eng  |c TXA  |d OCLCQ  |d OCLCF  |d OCLCO  |d OCLCQ  |d UMI  |d TXA  |d UtOrBLW 
049 |a TXAM 
099 |a 1981  |a Dissertation  |a N858 
100 1 |a Norris, Richard Eugene. 
245 1 2 |a A histological and ultrastructural study of variegated leaf chimeras of Saintpaulia ionantha Wendl. and their regeneration in vitro. 
264 1 |c 1981. 
300 |a xiii, 125 leaves :  |b illustrations ;  |c 29 cm 
336 |a text  |b txt  |2 rdacontent 
337 |a unmediated  |b n  |2 rdamedia 
338 |a volume  |b nc  |2 rdacarrier 
500 |a "Major subject: Plant Physiology." 
500 |a Typescript (photocopy). 
500 |a Vita. 
502 |b Ph. D. in Philosophy  |c Texas A & M University  |d 1981 
504 |a Includes bibliographical references (leaves 101-113). 
520 3 |a Variegated leaves of three African violet cultivars were studied by light and electron microscopy. This analysis combined with inheritance data revealed the following possible LI, LII, LIII periclinal chimera histogenic organizations: (a) cv. Marge Winters, GGW-type, (b) cv. Bold Dance, GWG-type, (c) cv. Calico Kitten, WWG-type. Electron micrographs of the mutated sections showed plastids that had dilated thylakoids typical of PSI mutants. Leaf and petiole explants of these variegated cultivars were cultured using a variety of techniques and growth regulator combinations. From these studies, the growth regulator combination most successful for the uniform regeneration of variegated chimeras was 2.0 mg/l IAA and 2.0 mg/l kinetin. This combination promoted the least amount of callus formation and allowed for more uniform direct plantlet formation from the upper leaf surface. Adventitious shoot formation from callus showed more phenotypic differences in the variegated pattern and was therefore a less predictable method of propagation. Light microscopy was used to study the in vitro formation of adventitious shoots that developed directly from the adaxial leaf surface. The early event in these meristematic regions was xylem vessel formation in the upper spongy mesophyll cells located below two or more periclinally dividing epidermal cells. The majority of the meristematic activity appeared to be in these epidermal cells but subjacent palisade cells also showed cell divisions. The uniform regeneration of three different periclinal chimeras each showing a different LI, LII, LIII shoot apex organization, strongly suggested that the final formation of the shoot required a multicellular and multilayer development. 
650 0 |a Chimeras (Botany)  |0 http://id.loc.gov/authorities/subjects/sh85023960 
650 0 |a Leaves  |x Color.  |0 http://id.loc.gov/authorities/subjects/sh85075612 
650 0 |a Plant anatomy.  |0 http://id.loc.gov/authorities/subjects/sh85015978 
650 0 |a Plant cells and tissues.  |0 http://id.loc.gov/authorities/subjects/sh85102712 
650 0 |a Plant tissue culture.  |0 http://id.loc.gov/authorities/subjects/sh85102818 
650 0 |a Variegation.  |0 http://id.loc.gov/authorities/subjects/sh85142329 
650 4 |a Plant Physiology. 
655 7 |a Academic theses.  |2 lcgft  |0 http://id.loc.gov/authorities/genreForms/gf2014026039 
700 1 |a Koehler, D. E.,  |e degree committee member.  |0 http://id.loc.gov/authorities/names/n82110680 
700 1 |a Morgan, D. L.,  |e degree committee member.  |0 http://id.loc.gov/authorities/names/n82023513 
700 1 |a Morgan, P. W.,  |e degree committee member. 
700 1 |a Smith, R. H.,  |e degree supervisor.  |0 http://id.loc.gov/authorities/names/n84142105 
710 2 |a Texas A & M University,  |e degree granting institution.  |0 http://id.loc.gov/authorities/names/n80125885 
856 4 1 |u http://proxy.library.tamu.edu/login?url=http://proquest.umi.com/pqdweb?did=748878911&sid=1&Fmt=2&clientId=2945&RQT=309&VName=PQD  |z Link to ProQuest Copy  |t 0 
856 4 1 |u https://hdl.handle.net/1969.1/DISSERTATIONS-90392  |z Link to OAKTrust copy  |t 0 
994 |a C0  |b TXA 
999 f f |s fb94555a-cfa1-3b04-b80a-e6edf1f16a9e  |i 4448009c-44db-3d9c-b392-62f5c23d0c9f  |t 0 
952 f f |p noncirc  |a Texas A&M University  |b J.J. Pickle Campus  |c High Density Repository  |s HDR  |d Remote Storage  |t 0  |e 1981 Dissertation N858  |h Other scheme  |i unmediated -- volume  |m A14841002848 
952 f f |a Texas A&M University  |b College Station  |c Electronic Resources  |s www_evans  |d Available Online  |t 0  |e 1981 Dissertation N858  |h Other scheme 
998 f f |a 1981 Dissertation N858  |t 0  |l Remote Storage 
998 f f |a 1981 Dissertation N858  |t 0  |l Available Online