MARC details
| 000 -LEADER |
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| fixed length control field |
03154nab a22004217a 4500 |
| 001 - CONTROL NUMBER |
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| control field |
68149 |
| 003 - CONTROL NUMBER IDENTIFIER |
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| control field |
MX-TxCIM |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20251105091814.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
241119s1981 -us|||po p||| 00| 0 eng d |
| 022 ## - INTERNATIONAL STANDARD SERIAL NUMBER |
|---|
| International Standard Serial Number |
0011-183X |
| 022 ## - INTERNATIONAL STANDARD SERIAL NUMBER |
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| International Standard Serial Number |
1435-0653 (Online) |
| 024 8# - OTHER STANDARD IDENTIFIER |
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| Standard number or code |
https://doi.org/10.2135/cropsci1981.0011183X002100040031x |
| 040 ## - CATALOGING SOURCE |
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| Original cataloging agency |
MX-TxCIM |
| 041 ## - LANGUAGE CODE |
|---|
| Language code of text/sound track or separate title |
eng |
| 100 1# - MAIN ENTRY--PERSONAL NAME |
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| Personal name |
Phillips, R.L. |
| 9 (RLIN) |
37301 |
| 245 10 - TITLE STATEMENT |
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| Title |
Seedling screening for lysine-plus-threonine resistant maize |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) |
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| Place of publication, distribution, etc. |
United States of America : |
| Name of publisher, distributor, etc. |
John Wiley & Sons, |
| Date of publication, distribution, etc. |
1981. |
| 500 ## - GENERAL NOTE |
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| General note |
Peer review |
| 520 ## - SUMMARY, ETC. |
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| Summary, etc. |
Over 200 maize (Zea mays L.) strains were evaluated for seedling growth on lysine-plus-threonine supplemented media in an attempt to find feedback resistant mutants. Five of 92 inbreds, most of which were developed for use in hybrid production, were resistant (i.e., root length on lysine + threonine medium exceeded 50% of control). Resistant inbreds B37 and B76 were from the Iowa Stiff Stalk Synthetic (BSSS) population. Nine of 103 random line isolates from the BSSS population were resistant. From 16 of the 17 original BSSS component lines tested, only Ill. 12-E was resistant. Seven broad base maize populations did not yield resistant types. Resistance was expressed only when seedlings were derived from germinating whole kernels. Seedlings derived from dissected embryos of resistant strains were inhibited. Studies of kernel aspartokinase and homoserine dehydrogenase activities indicated that alterations in the feedback regulation of these enzymes were not the basis of the observed lysine + threonine resistance. The opaque-2 version of B37 was inhibited. This observation and amino acid data led to the tentative hypothesis that resistance is a function of the relative amounts of methionine and lysine (M/L ratio) in the kernel with a high M/L ratio leading to resistance and a low M/L ratio leading to inhibition. All three resistant strains analyzed had a high M/L ratio compared with four inhibited strains. Kernels of one strain, BSSS 53, had approximately 21% more total methionine than the other four inbreds analyzed (two resistant, two inhibited) yet retained the typical dent kernel phenotype. Kernels of the resistant strains also tended to have higher percent protein. Specific approaches are suggested for selecting high methionine or high lysine maize. |
| 546 ## - LANGUAGE NOTE |
|---|
| Language note |
Text in English |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Seedlings |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
5415 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Screening |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
5621 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Lysine |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
5257 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Threonine |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
22526 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Hybrids |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
1151 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Mutants |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
4079 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Enzymes |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
4657 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Kernels |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
1168 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Homoserine |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
37304 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Oxidoreductases |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
11420 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Methionine |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
25829 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Zea mays |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
1314 |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Morris, P.R. |
| 9 (RLIN) |
37302 |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Wold, F. |
| 9 (RLIN) |
37303 |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Gengenbach, B.G. |
| 9 (RLIN) |
505 |
| 773 0# - HOST ITEM ENTRY |
|---|
| Place, publisher, and date of publication |
United States of America : John Wiley & Sons, 1981. |
| Related parts |
v. 21, no. 4, p. 601-607 |
| Title |
Crop Science |
| Record control number |
G444244 |
| International Standard Serial Number |
0011-183X |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Source of classification or shelving scheme |
Dewey Decimal Classification |
| Koha item type |
Article |
| Suppress in OPAC |
No |