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JournalISSN: 0019-5502

Indian journal of plant physiology 

Springer Science+Business Media
About: Indian journal of plant physiology is an academic journal. The journal publishes majorly in the area(s): Germination & Drought tolerance. It has an ISSN identifier of 0019-5502. Over the lifetime, 1382 publications have been published receiving 8948 citations.


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Journal ArticleDOI
TL;DR: A closer look is taken at the physiological responses of chitosan molecule, which induces mechanisms in plants against various biotic (fungi, bacteria, and insects) and abiotic stresses and helps in formation of barriers that enhances plant's productivity.
Abstract: Biopolymer “Chitosan” has received much interest for potential wide application in agriculture due to its excellent biocompatibility, biodegradability and bioactivity. This naturally occurring molecule with interesting physiological potential has been getting more attention in recent years. Chitosan enhanced the efficacy of plants to reduce the deleterious effect of unfavorable conditions as well as on plant growth. Chitosan affects various physiological responses like plant immunity, defense mechanisms involving various enzymes such as, phenylalanine ammonium lyase, polyphenol oxidase, tyrosine ammonia lyase and antioxidant enzymes viz., activities superoxide dismutase, catalase and peroxide against adverse conditions. Recent studies have shown that chitosan induces mechanisms in plants against various biotic (fungi, bacteria, and insects) and abiotic (salinity, drought, heavy metal and cold) stresses and helps in formation of barriers that enhances plant's productivity. This paper takes a closer look at the physiological responses of chitosan molecule.

190 citations

Journal ArticleDOI
TL;DR: In this study a simple protocol was developed for purifying phycocyanin (PC) from Spirulina platensis by using ammonium sulphate precipitation, followed by a single step chromatography by using DEAE-Cellulose-11 and acetate buffer.
Abstract: In this study a simple protocol was developed for purifying phycocyanin (PC) from Spirulina platensis (CCC540) by using ammonium sulphate precipitation, followed by a single step chromatography by using DEAE-Cellulose-11 and acetate buffer. Precipitation with 65 % ammonium sulphate resulted in 80 % recovery of phycocyanin with purity of 1.5 (A620/A280). Thro1ugh chromatography an 80 % recovery of phycocyanin with a purity of 4.5 (A620/A280) was achieved. In SDS_PAGE analysis, the purified PC showed the presence of two subunit α (16 kD) and β (17 kD).

136 citations

Journal Article
TL;DR: It is indicated that the pod influences the plant responses to water stress as indicated by the differences in leaf area production, plant height and carbon exchange characteristics in podded and depodded plants during water stress.
Abstract: Effect of fruit load on plant responses to water stress was studied in two cultivars (Arka Anamika and Parvani Kranti) of okra (Abelmoschus esculentum L). Plants were divided into two groups before imposing the stress at reproductive stage: (i) in one group the pods were regularly harvested (depodded) and (ii) in other group the pods were not harvested (podded). Plants were subjected to water stress for five weeks. Leaf area reduction was more in podded plants of both the cultivars under water stress. Water stress resulted in significant decrease in photosynthetic rate. There was 12 to 40 % reduction in photosynthesis in depodded and 16 to 52 % in podded plants of Arka Anamika, while it was 2.5 to 54 % in depodded and 1.0 to 66 % in podded plants of Parvani Kranti. Maximum reduction in total dry matter accumulation was 51% in depodded plants of Arka Anamika, while 43% in podded plants of Parvani Kranti under the stress. Though there was recovery in physiological parameters after releasing the stress, a reduction of 47 (depodded) to 55% (podded) in biological yield was found in Arka Anamika and 10 (depodded) to 46% (podded) in Parvani Kranti in stressed plants at final harvest of crop. The results indicated that the pod influences the plant responses to water stress as indicated by the differences in leaf area production, plant height and carbon exchange characteristics in podded and depodded plants during water stress.

125 citations

Journal Article
TL;DR: Salinity stress increased markedly the protein content in the salt sensitive cultivar (Giza 113), which was accompanied with a drastic reduction in growth and pigmentation, and IAA markedly retarded the accumulation of proline in most cases.
Abstract: Interactive effect of salinity stress and IAA on growth, water content (WC) and some relevant metabolic activities of three sorghum cultivars (45- days old) were studied. Dry matter (DW), water content and tolerance index(TI) of the tested sorghum cvs. differed in response to salinity. Cvs. Dorado and Hagen Shandawil tolerated salinity up to the level of 4 and 2 bar NaCl, respectively, while cv. Giza 113 did not show tolerance to salinity stress. This was accompanied with differences in accumulation of carbohydrate and nitrogen compounds. Proline accumulation seems to be in response to injury. It was positively correlated with the growth criteria in cv. Dorado (the most resistance cultivar) and to some extent in cv. Hagen Shandawil, while negatively correlated in cv. Giza 113 (the most sensitive cultivar). Salinity stress increased markedly the protein content in the salt sensitive cultivar (Giza 113), which was accompanied with a drastic reduction in growth and pigmentation. IAA ameliorated the inhibitory effect of salinity on the growth, increased carbohydrates and protein content of all the three cultivars. IAA, also markedly retarded the accumulation of proline in most cases. The relationship between salt tolerance of sorghum cultivars and the changes in proline content is discussed.

97 citations

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Performance
Metrics
No. of papers from the Journal in previous years
YearPapers
20204
201923
201881
201770
201669
201561