GA3 induced changes in slow growing endangered Himalayan plant Podophyllum hexandrum and hastening of vegetative growth
IR@IHBT: CSIR-Institute of Himalayan Bioresource Technology, Palampur
View Archive Info| Field | Value | |
| Title |
GA3 induced changes in slow growing endangered
Himalayan plant Podophyllum hexandrum and hastening
of vegetative growth
|
|
| Creator |
kushwaha, R
Pandey, S Chanda, S Bhattacharya, Amita Ahuja, Paramvir Singh |
|
| Subject |
Plant Biotechnology
|
|
| Description |
The endangered Himalayan plant
Podophyllum hexandrum syn. P. emodi is inherently
slow growing. The plants exhibit delayed
emergence of functional leaves or hypocotyl
dormancy. However, on GA3 treatment the
functional leaves were found to emerge at a
favorable temperature of 2 degree C in a higher percentage
of seedlings and in a shorter time.
Functional leaves emerged even at 10 degree C, a temperature
when hypocotyl dormancy generally
prevails. A considerable increase in the biochemical
parameters related to carbon and nitrogen
metabolism [starch, sugars and soluble nitrates,
a-amylase and nitrate reductase (NR) activity],
respiration and total dehydrogenase activity in all
the seedling parts also indicated an enhancement
of metabolic processes as influenced by GA3, for
further growth and development. Specific leaf
area of the green cotyledonary leaves increased at
25 degree C, probably to meet the carbon and nitrogen
requirements for new structure formation. Higher
activity of enzymes involved in carbon and
nitrogen metabolism, i.e., NR and a-amylaseespecially at Hbn, the region of leaf meristematic
activity, was further indicative of higher metabolism
for earlier initiation of rapid vegetative
growth. Initiation of reserve accumulation was
also observed at 25 degree C.
|
|
| Date |
2007
|
|
| Type |
Article
PeerReviewed |
|
| Format |
application/pdf
|
|
| Identifier |
http://ihbt.csircentral.net/16/1/2007_GA3_induced.pdf
kushwaha, R and Pandey, S and Chanda, S and Bhattacharya, Amita and Ahuja, Paramvir Singh (2007) GA3 induced changes in slow growing endangered Himalayan plant Podophyllum hexandrum and hastening of vegetative growth. Plant Growth Regulation, 51 (3). pp. 207-215. |
|
| Relation |
http://ihbt.csircentral.net/16/
|
|