Abstract
Cheilanthes albomarginata (CA) is a fern belongs to Pteridaceae family and is found mainly in hills of India, Pakistan and Nepal at an altitudes 1300-2700m. It grows in rock crevices and has been recognized as a desiccation tolerant (DT) plant. It has the ability to survive under complete desiccation and resurrect under minimal water conditions. An extensive field survey was conducted in Devarayanadurga State Forest, Tumakuru district which led to collection and positive identification of CA. Also, studied desiccation tolerance in the CA. Detached fronds from healthy plants are fully hydrated then subsequent desiccation and rehydration are subjected to experimental study. During desiccation, the relative water content (RWC) of detached desiccated fronds decreased rapidly to 9.2 % after 13 hrs and desiccated fronds showed intense inward curving as a result of water loss. During rehydration, the RWC of the detached fronds regained to 90.68 % within 4 hrs. The rehydrated fronds regained broadly the original morphology. Further, activities of antioxidant enzymes (SOD, POD, CAT, and GR), lipid peroxidation, proline and relative electrolyte leakage increased during desiccation. Also sucrose and starch content showed varying response to desiccation stress. However, plasma membrane integrity was lost during to dehydration. The results obtained revealed that CA is metabolically potent to tolerate desiccation.
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Claims 11
Claim · model-written summary
Desiccated frond relative water content fell to 9.2 % after 13 hrs.
- Taxon
- Cheilanthes albomarginata
Cheilanthes albomarginatae0 - Treatment
- desiccatione1
- Outcome
- relative water content (RWC) of detached desiccated frondse1
- Direction
- decreasede1
- Value
- 9.2 %e1
- Qualifier
- after 13 hrse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cheilanthes albomarginata (CA)”
e1“During desiccation, the relative water content (RWC) of detached desiccated fronds decreased rapidly to 9.2 % after 13 hrs”
Claim · model-written summary
Desiccated fronds curved inward with water loss.
- Taxon
- Cheilanthes albomarginataCheilanthes albomarginatae0
- Organ / stage
- desiccated frondse1
- Outcome
- intense inward curvinge1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cheilanthes albomarginata (CA)”
e1“desiccated fronds showed intense inward curving as a result of water loss”
Claim · model-written summary
Rehydrated frond relative water content recovered to 90.68 % within 4 hrs.
- Taxon
- Cheilanthes albomarginataCheilanthes albomarginatae0
- Treatment
- rehydratione1
- Outcome
- RWC of the detached frondse1
- Direction
- regainede1
- Value
- 90.68 %e1
- Qualifier
- within 4 hrse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cheilanthes albomarginata (CA)”
e1“During rehydration, the RWC of the detached fronds regained to 90.68 % within 4 hrs.”
Claim · model-written summary
Rehydrated fronds broadly regained original morphology.
- Taxon
- Cheilanthes albomarginataCheilanthes albomarginatae0
- Organ / stage
- rehydrated frondse1
- Outcome
- regained broadly the original morphologye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cheilanthes albomarginata (CA)”
e1“The rehydrated fronds regained broadly the original morphology.”
Claim · model-written summary
Antioxidant enzyme activities increased during desiccation.
- Taxon
- Cheilanthes albomarginataCheilanthes albomarginatae0
- Treatment
- desiccatione1
- Outcome
- activities of antioxidant enzymes (SOD, POD, CAT, and GR)e1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cheilanthes albomarginata (CA)”
e1“activities of antioxidant enzymes (SOD, POD, CAT, and GR), lipid peroxidation, proline and relative electrolyte leakage increased during desiccation”
Claim · model-written summary
Lipid peroxidation increased during desiccation.
- Taxon
- Cheilanthes albomarginataCheilanthes albomarginatae0
- Treatment
- desiccatione1
- Outcome
- lipid peroxidatione1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cheilanthes albomarginata (CA)”
e1“lipid peroxidation, proline and relative electrolyte leakage increased during desiccation”
Claim · model-written summary
Proline increased during desiccation.
- Taxon
- Cheilanthes albomarginataCheilanthes albomarginatae0
- Treatment
- desiccatione1
- Outcome
- prolinee1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cheilanthes albomarginata (CA)”
e1“proline and relative electrolyte leakage increased during desiccation”
Claim · model-written summary
Relative electrolyte leakage increased during desiccation.
- Taxon
- Cheilanthes albomarginataCheilanthes albomarginatae0
- Treatment
- desiccatione1
- Outcome
- relative electrolyte leakagee1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cheilanthes albomarginata (CA)”
e1“relative electrolyte leakage increased during desiccation”
Claim · model-written summary
Sucrose content varied in response to desiccation.
- Taxon
- Cheilanthes albomarginataCheilanthes albomarginatae0
- Treatment
- desiccation stresse1
- Outcome
- sucrosee1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cheilanthes albomarginata (CA)”
e1“sucrose and starch content showed varying response to desiccation stress”
Claim · model-written summary
Starch content varied in response to desiccation.
- Taxon
- Cheilanthes albomarginataCheilanthes albomarginatae0
- Treatment
- desiccation stresse1
- Outcome
- starch contente1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cheilanthes albomarginata (CA)”
e1“sucrose and starch content showed varying response to desiccation stress”
Claim · model-written summary
Plasma membrane integrity was lost during dehydration.
- Taxon
- Cheilanthes albomarginataCheilanthes albomarginatae0
- Treatment
- dehydratione1
- Outcome
- plasma membrane integritye1
- Direction
- loste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cheilanthes albomarginata (CA)”
e1“plasma membrane integrity was lost during to dehydration”