Cotton Seed Priming with Brassinosteroid Promotes Germination and Seedling Growth
Cotton (<i>Gossypium hirsutum</i>) is the largest fibre crop globally and an important oilseed crop. Rising temperatures and declining water supplies, which are also impacting soil salinity, threaten cotton plant productivity. Germination, emergence and young seedling stages in cotton ar...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-03-01
|
| Series: | Agronomy |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4395/11/3/566 |
| _version_ | 1797540946855854080 |
|---|---|
| author | Shyama Prashad Chakma Stephen Mushimwa Chileshe Richard Thomas Priti Krishna |
| author_facet | Shyama Prashad Chakma Stephen Mushimwa Chileshe Richard Thomas Priti Krishna |
| author_sort | Shyama Prashad Chakma |
| collection | DOAJ |
| description | Cotton (<i>Gossypium hirsutum</i>) is the largest fibre crop globally and an important oilseed crop. Rising temperatures and declining water supplies, which are also impacting soil salinity, threaten cotton plant productivity. Germination, emergence and young seedling stages in cotton are highly sensitive to salinity and heat stresses. Brassinosteroids (BRs) are plant steroid hormones that are essential for proper plant growth and development and also promote tolerance to a range of environmental stresses. Cotton seeds were primed with BR (24-epibrassinolide) alone or in combination with other hormones (abscisic acid, auxin and gibberellic acid) and tested for germination and early seedling growth. BR promoted germination under no stress as well as under salinity and heat stress conditions, while other hormones were ineffective under stress conditions. BR also promoted cotyledon opening and the development of lateral roots in germinated seedlings. The ability of BR to positively impact seedling growth across different stress conditions suggests that priming cotton seeds with BR may help in early and successful establishment of seedlings, which may benefit the plant through its lifecycle. |
| first_indexed | 2024-03-10T13:08:18Z |
| format | Article |
| id | doaj.art-01b0cd1e33a8446193127cbc3687688d |
| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-10T13:08:18Z |
| publishDate | 2021-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-01b0cd1e33a8446193127cbc3687688d2023-11-21T10:54:28ZengMDPI AGAgronomy2073-43952021-03-0111356610.3390/agronomy11030566Cotton Seed Priming with Brassinosteroid Promotes Germination and Seedling GrowthShyama Prashad Chakma0Stephen Mushimwa Chileshe1Richard Thomas2Priti Krishna3School of Science, Hawkesbury Campus, Western Sydney University, Richmond, NSW 2753, AustraliaZambia Agriculture Research Institute, Kabwe 10101, ZambiaSchool of Science, Hawkesbury Campus, Western Sydney University, Richmond, NSW 2753, AustraliaSchool of Science, Hawkesbury Campus, Western Sydney University, Richmond, NSW 2753, AustraliaCotton (<i>Gossypium hirsutum</i>) is the largest fibre crop globally and an important oilseed crop. Rising temperatures and declining water supplies, which are also impacting soil salinity, threaten cotton plant productivity. Germination, emergence and young seedling stages in cotton are highly sensitive to salinity and heat stresses. Brassinosteroids (BRs) are plant steroid hormones that are essential for proper plant growth and development and also promote tolerance to a range of environmental stresses. Cotton seeds were primed with BR (24-epibrassinolide) alone or in combination with other hormones (abscisic acid, auxin and gibberellic acid) and tested for germination and early seedling growth. BR promoted germination under no stress as well as under salinity and heat stress conditions, while other hormones were ineffective under stress conditions. BR also promoted cotyledon opening and the development of lateral roots in germinated seedlings. The ability of BR to positively impact seedling growth across different stress conditions suggests that priming cotton seeds with BR may help in early and successful establishment of seedlings, which may benefit the plant through its lifecycle.https://www.mdpi.com/2073-4395/11/3/566brassinosteroidcottonseed priminggerminationsalt stressheat stress |
| spellingShingle | Shyama Prashad Chakma Stephen Mushimwa Chileshe Richard Thomas Priti Krishna Cotton Seed Priming with Brassinosteroid Promotes Germination and Seedling Growth Agronomy brassinosteroid cotton seed priming germination salt stress heat stress |
| title | Cotton Seed Priming with Brassinosteroid Promotes Germination and Seedling Growth |
| title_full | Cotton Seed Priming with Brassinosteroid Promotes Germination and Seedling Growth |
| title_fullStr | Cotton Seed Priming with Brassinosteroid Promotes Germination and Seedling Growth |
| title_full_unstemmed | Cotton Seed Priming with Brassinosteroid Promotes Germination and Seedling Growth |
| title_short | Cotton Seed Priming with Brassinosteroid Promotes Germination and Seedling Growth |
| title_sort | cotton seed priming with brassinosteroid promotes germination and seedling growth |
| topic | brassinosteroid cotton seed priming germination salt stress heat stress |
| url | https://www.mdpi.com/2073-4395/11/3/566 |
| work_keys_str_mv | AT shyamaprashadchakma cottonseedprimingwithbrassinosteroidpromotesgerminationandseedlinggrowth AT stephenmushimwachileshe cottonseedprimingwithbrassinosteroidpromotesgerminationandseedlinggrowth AT richardthomas cottonseedprimingwithbrassinosteroidpromotesgerminationandseedlinggrowth AT pritikrishna cottonseedprimingwithbrassinosteroidpromotesgerminationandseedlinggrowth |