scispace - formally typeset
Search or ask a question

Showing papers in "Plant Science in 2003"


Journal ArticleDOI
TL;DR: It is suggested that Pb induces oxidative stress in growing rice plants and that SOD, peroxidases and GR could serve as important components of antioxidative defense mechanism against Pb induced oxidative injury in rice.

1,070 citations


Journal ArticleDOI
TL;DR: SA's protective action includes the development of antistress programs and acceleration of growth processes recovery after the removal of stress factors, which reduces stress-induced inhibition of plant growth.

769 citations


Journal ArticleDOI
TL;DR: The wild salt-tolerant beet, B. maritima, may exhibit a better protection mechanism against oxidative damage by maintaining a higher inherited and induced activity of antioxidant enzymes than the relatively sensitive plants of the sugar beet, C. vulgaris cv.

598 citations


Journal ArticleDOI
TL;DR: It is shown that concerted action of both enzymatic and non-enzymatic ROS scavenging machineries is vital to overcome salinity-induced oxidative stress in rice, and high levels of catalase activity indicate efficient scavenging of H 2 O 2.

431 citations


Journal ArticleDOI
TL;DR: A number of mutants defective in different aspects of calcium oxalate crystal formation have been isolated Cellular and biochemical characterizations of the various mutants have revealed mutations affecting crystal nucleation, morphology, distribution, and/or amount such mutants will be useful tools in continued efforts to decipher the pathways of crystal formation and function in plants.

389 citations


Journal ArticleDOI
TL;DR: In this paper, the expression of the soybean ferritin gene under the control of the glutelin promoter in rice has proven to be effective in enhancing grain nutritional levels, not only in brown grains but also in polished grains.

387 citations


Journal ArticleDOI
TL;DR: The high temperature regimens reduced the relativ el evels of transcripts for starch synthase more than the other starch biosynthetic enzymes.

287 citations


Journal ArticleDOI
TL;DR: The data suggest that, boron toxicity induced membrane damage in barley leaves, do not involve active oxygen species and antioxidant enzyme activity is not a critical factor in borons toxicity tolerance mechanism.

270 citations


Journal ArticleDOI
TL;DR: The Vrn1-Fr1 region seemed to have a role in regulating the expression level of some of the antioxidant enzyme genes because t-APX, CAT and MnSOD expressed to significantly higher levels in the winter wheat NIL than the spring wheat Nil after 4 weeks’ cold acclimation.

250 citations


Journal ArticleDOI
TL;DR: During salt stress, proline metabolism was significantly altered and the extent of alteration varied between the cultivars S1 and ATP, leading to the maintenance of the turgor by accumulating higher levels of free proline in S1, supporting its salt tolerance.

237 citations


Journal ArticleDOI
TL;DR: The results suggest that Se is an antioxidant or it activates protective mechanisms, which can alleviate oxidative stress in the chloroplasts, and improve the recovery of chlorophyll content following light stress.

Journal ArticleDOI
TL;DR: The highest correlation between the enzyme activity and frost tolerance was found in the case of GPx and ascorbate peroxidase from hardened leaves, and enzyme activities in the crown and in unhardened leaves showed no significant positive correlation.

Journal ArticleDOI
TL;DR: The most outstanding effect of exogenous application of proline and glycinebetaine on tomato plants was a decreased accumulation of Na+ and Cl−, and this deleterious effect can be attributed to a toxic effect of both.

Journal ArticleDOI
TL;DR: This report shows that the production of selective volatile antibiotics by endophytic fungi is not exclusively confined to the Muscodor spp, a well known volatile antimicrobial producer.

Journal ArticleDOI
TL;DR: Enhanced SA levels in plants can have an effect on delay AMF root colonization, but do not affect the symbiotic potential of plants in terms of changes in maximal threshold of root colonization.

Journal ArticleDOI
TL;DR: It is indicated that SSRs will be an ideal means for the identification of the genetic constitution of modern sugarcane cultivars of interspecific origins.

Journal ArticleDOI
TL;DR: Results suggest that OC-I affects M. persicae through digestive tract targets, but also by reaching the haemolymph, thereby inhibiting extra-digested proteolytic activities and interacting with functions related to aphid reproduction.

Journal ArticleDOI
TL;DR: Transgenic lines with increasing spermidine and putrescine titres exhibited tolerance to salinity and drought as well as to fungal wilts caused by Verticillium dahliae and Fusarium oxysporum, the first report where tolerance to both abiotic and biotic stresses has been observed in transgenic plants following transfer of a polyamine biosynthesis gene.

Journal ArticleDOI
TL;DR: Both the xanthophyll cycle and the ascorbate–glutathione pathway in the apple fruit peel are acclimated to the prevailing light exposure within the tree canopy to meet the respective needs for dissipating excess absorbed PFD and detoxifying reactive oxygen species.

Journal ArticleDOI
TL;DR: It is suggested that sugars transported into hypocotyls promote anthocyanin biosynthesis by inducing expression of the biosynthetic genes in radish.

Journal ArticleDOI
TL;DR: The regression analysis showed that there were significant and negative correlations between connected organs of the rice plants, but positive correlations, mostly significant, between disconnected organs, for the lead concentrations in them.

Journal ArticleDOI
TL;DR: Changes in activities of the enzymes and metabolite levels of the cycle were first of all a time-dependent, but also Cu-concentration-dependent.

Journal ArticleDOI
TL;DR: This review focuses primarily on the presence and distribution of organoarsenic compounds in vascular plants, marine and freshwater algal species, lichens, fungi, and microorganisms.

Journal ArticleDOI
TL;DR: The results suggest that resveratrol synthesis is induced by biotic and abiotic factors through the regulation of RS transcription, and that stress hormones such as SA and ethylene are involved in the RS gene expression in peanut.

Journal ArticleDOI
TL;DR: Tolerance to soil drought of two field-grown clones of Coffea canephora was compared and clone 120 was better able to postpone dehydration and to maintain whole-tree photosynthesis and it is proposed that these features should decisively contribute to buffer its productivity in drought-prone areas.

Journal ArticleDOI
TL;DR: In this article, the authors describe the impact of transient high temperature on the concentration and composition of anthocyanins in 'Jaguar' rose flowers and show that a 1-day heat treatment of 39/18°C day/night has no effect on pigmentation but a 3-day treatment has a substantial effect.

Journal ArticleDOI
TL;DR: The variations of antioxidant enzyme activities and lipid peroxidation (LPO) levels were investigated in all Mentha pulegium organs grown in the excess and absence of Ca2+, Mg2+ as macronutrients; Cu2+, Zn2+ and Mn2- as micronutrient and control conditions.

Journal ArticleDOI
TL;DR: Growth of the three populations of P. antidotale adapted to saline or waterlogged habitats was associated with net CO 2 assimilation and stomatal conductance, but not with any of the water relation parameters measured.

Journal ArticleDOI
TL;DR: The mRNAs of anthocyanin biosynthetic genes were detected preferentially in the skin tissue and expression of the genes was coordinately induced by light, suggesting that these genes have major roles in determination of apple skin color.

Journal ArticleDOI
TL;DR: Cadmium and copper increased ethylene production sixfold in wheat leaves, while in sunflower leaves, only copper produced a great increment in the hormone (300% over the control), with the resulting increase in Put concentration.