Tea (Camellia sinensis) clones with shorter periods of winter dormancy exhibit lower accumulation of reactive oxygen species.
IR@IHBT: CSIR-Institute of Himalayan Bioresource Technology, Palampur
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| Title |
Tea (Camellia sinensis) clones with shorter periods of winter dormancy exhibit lower accumulation of reactive oxygen species.
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| Creator |
Vyas, D
Kumar, Sanjay Ahuja, Paramvir Singh |
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| Subject |
Plant sciences
Nutraceuticals |
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| Description |
Tea (Camellia sinensis (L.) O.Kuntze) is a perennial
crop grown throughout the world. During winter, tea undergoes
a dormancy period when growth of apical buds almost
ceases, severely reducing the commercial yield of tea. Low
temperatures prevail during the period of winter dormancy,
which alone or in combination with high solar irradiance have
the potential to induce oxidative stress in plants.We studied six
tea clones under field conditions to test whether a relationship
exists between oxidative stress and winter dormancy. Data on
the behavior of the enzymatic antioxidative system was collected
for all clones during different phases of winter dormancy.
There was a strong positive correlation among clones
between accumulation of reactive oxygen species (ROS) and
the length of the dormancy period. Clones having shorter dormancy
periods exhibited higher induction of antioxidative enzymes.
Results suggest that efficient scavenging of ROS is a
desirable feature in tea because it leads to lower accumulations
of ROS during winter months and is associated with reduced
winter dormancy.
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| Publisher |
Heron Publishing, 202, 3994 Shelbourne St, Victoria, BC V8n 3E2, Canada.
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| Date |
2007
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://ihbt.csircentral.net/262/1/Tree.pdf
Vyas, D and Kumar, Sanjay and Ahuja, Paramvir Singh (2007) Tea (Camellia sinensis) clones with shorter periods of winter dormancy exhibit lower accumulation of reactive oxygen species. Tree Physiology, 27 (9). pp. 1253-1259. ISSN 0829-318X |
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| Relation |
http://ihbt.csircentral.net/262/
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