Disease Development and Discovery of Anatomically Resistant Features towards Bacterial Leaf Streak in Rice
Bacterial leaf streak (BLS) caused by bacterium <i>Xanthomonas oryzae</i> pv. <i>oryzicola</i> (<i>Xoc</i>) is one of the most prominent rice diseases. BLS causes a significant reduction in paddy yields. However, there are limited studies and a lack of information...
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MDPI AG
2022-04-01
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| Series: | Agriculture |
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| Online Access: | https://www.mdpi.com/2077-0472/12/5/629 |
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| author | Waheeda Abd Wahab Noraini Talip Syazwani Basir Muhamad Afiq Akbar Mohd Faiz Mat Saad Hamidun Bunawan |
| author_facet | Waheeda Abd Wahab Noraini Talip Syazwani Basir Muhamad Afiq Akbar Mohd Faiz Mat Saad Hamidun Bunawan |
| author_sort | Waheeda Abd Wahab |
| collection | DOAJ |
| description | Bacterial leaf streak (BLS) caused by bacterium <i>Xanthomonas oryzae</i> pv. <i>oryzicola</i> (<i>Xoc</i>) is one of the most prominent rice diseases. BLS causes a significant reduction in paddy yields. However, there are limited studies and a lack of information regarding the mechanisms and cells affected on leaf tissues severed from this disease. Therefore, in this study, sensitive paddy variety IR24 was inoculated against BLS, and the pathogen colonised mesophyll cells and some bundle sheath cells. The infection spreads rapidly towards the base and apex of the leaf, but rather slowly to the left and right sides of the leaf veins. Another experiment was performed to unravel anatomical characteristics in sensitive paddy varieties (TN1, IR24, IR5) and resistant paddy varieties (IR26, Dular, IR36) against BLS. Susceptible paddy varieties have less thick midrib and leaf lamina, a high number of bundle sheath cells at primary vascular tissue (midrib), one layer of sclerenchyma cells at the secondary vein, and more than two metaxylems at the primary vein. Resistant paddy varieties, on the other hand, consist of a relatively thickened midrib and leaf lamina, fewer bundle sheath cells at the primary vascular tissue (midrib), more than one sclerenchyma layers at the secondary vein, and two metaxylems at the primary vein. This study contributes new knowledge in identifying the level of infection in paddy fields, and helps breeders in producing resistant paddies to this disease. |
| first_indexed | 2024-03-10T03:32:09Z |
| format | Article |
| id | doaj.art-4001104a526a4effa62e96873492c974 |
| institution | Directory Open Access Journal |
| issn | 2077-0472 |
| language | English |
| last_indexed | 2024-03-10T03:32:09Z |
| publishDate | 2022-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agriculture |
| spelling | doaj.art-4001104a526a4effa62e96873492c9742023-11-23T09:39:16ZengMDPI AGAgriculture2077-04722022-04-0112562910.3390/agriculture12050629Disease Development and Discovery of Anatomically Resistant Features towards Bacterial Leaf Streak in RiceWaheeda Abd Wahab0Noraini Talip1Syazwani Basir2Muhamad Afiq Akbar3Mohd Faiz Mat Saad4Hamidun Bunawan5Department of Biological Sciences and Biotechnology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, MalaysiaDepartment of Biological Sciences and Biotechnology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, MalaysiaDepartment of Biological Sciences and Biotechnology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, MalaysiaDepartment of Biological Sciences and Biotechnology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, MalaysiaInstitute of Systems Biology, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, MalaysiaInstitute of Systems Biology, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, MalaysiaBacterial leaf streak (BLS) caused by bacterium <i>Xanthomonas oryzae</i> pv. <i>oryzicola</i> (<i>Xoc</i>) is one of the most prominent rice diseases. BLS causes a significant reduction in paddy yields. However, there are limited studies and a lack of information regarding the mechanisms and cells affected on leaf tissues severed from this disease. Therefore, in this study, sensitive paddy variety IR24 was inoculated against BLS, and the pathogen colonised mesophyll cells and some bundle sheath cells. The infection spreads rapidly towards the base and apex of the leaf, but rather slowly to the left and right sides of the leaf veins. Another experiment was performed to unravel anatomical characteristics in sensitive paddy varieties (TN1, IR24, IR5) and resistant paddy varieties (IR26, Dular, IR36) against BLS. Susceptible paddy varieties have less thick midrib and leaf lamina, a high number of bundle sheath cells at primary vascular tissue (midrib), one layer of sclerenchyma cells at the secondary vein, and more than two metaxylems at the primary vein. Resistant paddy varieties, on the other hand, consist of a relatively thickened midrib and leaf lamina, fewer bundle sheath cells at the primary vascular tissue (midrib), more than one sclerenchyma layers at the secondary vein, and two metaxylems at the primary vein. This study contributes new knowledge in identifying the level of infection in paddy fields, and helps breeders in producing resistant paddies to this disease.https://www.mdpi.com/2077-0472/12/5/629leaf anatomyIR24bacterial leaf streak<i>Xoc</i> |
| spellingShingle | Waheeda Abd Wahab Noraini Talip Syazwani Basir Muhamad Afiq Akbar Mohd Faiz Mat Saad Hamidun Bunawan Disease Development and Discovery of Anatomically Resistant Features towards Bacterial Leaf Streak in Rice Agriculture leaf anatomy IR24 bacterial leaf streak <i>Xoc</i> |
| title | Disease Development and Discovery of Anatomically Resistant Features towards Bacterial Leaf Streak in Rice |
| title_full | Disease Development and Discovery of Anatomically Resistant Features towards Bacterial Leaf Streak in Rice |
| title_fullStr | Disease Development and Discovery of Anatomically Resistant Features towards Bacterial Leaf Streak in Rice |
| title_full_unstemmed | Disease Development and Discovery of Anatomically Resistant Features towards Bacterial Leaf Streak in Rice |
| title_short | Disease Development and Discovery of Anatomically Resistant Features towards Bacterial Leaf Streak in Rice |
| title_sort | disease development and discovery of anatomically resistant features towards bacterial leaf streak in rice |
| topic | leaf anatomy IR24 bacterial leaf streak <i>Xoc</i> |
| url | https://www.mdpi.com/2077-0472/12/5/629 |
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