| |
| DOI: | 10.1002/csc2.21173 |
|---|
| Web URL(s): | https://acsess.onlinelibrary.wiley.com/doi/10.1002/csc2.21173
Last checked: 03/28/2024
https://acsess.onlinelibrary.wiley.com/doi/pdf/10.1002/csc2.21173
Last checked: 03/28/2024
Requires: PDF Reader |
|---|
| Publication Type:
| Refereed |
|---|
| Author(s): | Itam, Michael;
Hall, David;
Kramer, David;
Merewitz, Emily |
|---|
| Author Affiliation: | Itam and Merewitz: Department of Plant, Soil, and Microbial Sciences, Michigan State University, East Lansing, Michigan; Hall and Kramer: MSU-DOE Plant Research Laboratory, Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, Michigan |
|---|
| Title: | Early detection of Kentucky bluegrass and perennial ryegrass responses to drought stress by measuring chlorophyll fluorescence parameters |
|---|
| Section: | Turfgrass science
Other records with the "Turfgrass science" Section
|
|---|
| Source: | Crop Science. Vol. 64, No. 2, March/April 2024, p. 1015-1026. |
|---|
| Publishing Information: | Madison, Wisconsin: Crop Science Society of America |
|---|
| # of Pages: | 12 |
|---|
| Abstract/Contents: | "Kentucky bluegrass (Poa pratensis L.; drought resistant) and perennial ryegrass (Lolium perenne L.; drought sensitive) are economically important grass species contrasting in drought stress resistance. This study determined the optimal chlorophyll fluorescence parameters to indicate drought incidence and whether the parameters differentiate intra- and interspecies variations in drought stress. For each species, nine cultivars were exposed to well-watered or drought (water withheld) conditions in growth chambers containing high-throughput photosynthetic imagers to track real-time responses of maximum quantum efficiency of photosystem II (Fv/Fm), quantum yield of photosystem II (ΦII), non-photochemical quenching (NPQ), energy-dependent quenching (qE), and photoinhibition-associated quenching (qI). Soil moisture content and relative water content of leaf tissues were evaluated. Due to drought, Fv/Fm and ΦII decreased for cultivars of both species but earlier for perennial ryegrass compared to Kentucky bluegrass. The NPQ, qI, and qE values exhibited more dynamic and earlier changes due to drought compared to Fv/Fm and ΦII and allowed for early, mid, and late drought responses to be illustrated. Drought induced an increase in NPQ, qI, and qE values, which corresponded to activation of photoprotection mechanisms, and was exhibited earlier for perennial ryegrass compared to Kentucky bluegrass. As the drought treatment progressed, a decrease or stabilization of low values of NPQ, qI, and qE was observed, and the lowest values were associated with the most drought-sensitive cultivars. These results indicate important stress tolerance protection mechanisms for grass species and will broadly impact basic and applied grass research as a nondestructive phenotyping tool." |
|---|
| Language: | English |
|---|
| References: | 38 |
|---|
| Note: | Graphs
Tables |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Itam, M., D. Hall, D. Kramer, and E. Merewitz. 2024. Early detection of Kentucky bluegrass and perennial ryegrass responses to drought stress by measuring chlorophyll fluorescence parameters. Crop Sci. 64(2):p. 1015-1026. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=335483 |
| If there are problems with this record, send us feedback about record 335483. |
| Choices for finding the above item: |
|---|
| DOI: 10.1002/csc2.21173 |
| Web URL(s):
https://acsess.onlinelibrary.wiley.com/doi/10.1002/csc2.21173
Last checked: 03/28/2024
https://acsess.onlinelibrary.wiley.com/doi/pdf/10.1002/csc2.21173
Last checked: 03/28/2024
Requires: PDF Reader |
| 
MSU catalog number: b2211522 |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |
