Changes in growth, water content and protein reflect embryo development in pecan (<i>Carya illinoinensis</i>)

Jeyaretnam, Benjamin; Levi, Amnon; Phatak, S. C.; Wetzstein, Hazel Y.

doi:10.1080/14620316.1999.11511115

Cited by 6 publications

(8 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, proteins can be valuable markers in embryo development (Jeyaretman et al 1999). The developmental program involves the appearance or disappearance of specific proteins at particular stages, indicating that embryo differentiation is regulated by differential gene expression.…”

Section: Discussionmentioning

confidence: 99%

Total protein and isozyme characterization in the flax zygotic embryo during development

Preťová

Obert

Hajdúch

et al. 2001

Sexual Plant Reproduction

View full text Add to dashboard Cite

Flax zygotic embryogenesis was studied for isozyme patterns of acid phosphatase and esterase and for content of total proteins. For acid phosphatase, six multiple molecular forms or isozymes, were identified during flax zygotic embryo development. For esterase, six isozymes were expressed during zygotic flax embryogenesis. Some of the isozymes were expressed during entire embryogenesis, and some were only transiently expressed or appeared near maturation. The amount of total proteins was very low at early embryogenesis and proteins in a range from 26.6 kDa to 97.4 kDa were expressed. During further flax embryo development the protein spectra became more diverse and the quantity of total proteins increased. Proteins ranging from 3.4 kDa to 97.4 kDa were present, and proteins of 20 kDa to 36.5 kDa were expressed in the highest amount. The results are discussed with reference to selected information in the literature.

show abstract

Section: Discussionmentioning

confidence: 99%

Total protein and isozyme characterization in the flax zygotic embryo during development

Preťová

Obert

Hajdúch

et al. 2001

Sexual Plant Reproduction

View full text Add to dashboard Cite

show abstract

“…Samples for chemical analyses consisted of leaves and branches with 1 year-old shoots and current season growth. Samples were collected at: (1) full bloom (23 April); (2) completion of shoot elongation with mature leaves and leaf expansion mostly complete (8 June); (3) fruit with cotyledon elongation complete, but prior to reserve deposition, i.e., before kernel fill (28 August); (4) fruit maturation, i.e., reserve deposition complete (14 Oct); and (5) natural leaf abscission (25 Nov) as defined by Jeyaretnam et al (1999). For the last sampling, shoots were enclosed within Delnet pollination bags (Del Star Technologies, Middleton, DE, USA) just prior to leaf-fall to ensure that all leaves were collected shortly after abscission to prevent leaching of nutrients.…”

Section: Plant Materials and Samplingmentioning

confidence: 99%

“…Fruiting in pecan can create stress within the tree by depleting carbohydrate reserves (Sparks, 2003). The pecan kernel has a high oil content and is energy rich (Jeyaretnam et al, 1999), thus insufficient carbohydrates during fruit development can lead to smaller nut size, poor kernel fill and decreased yield.…”

mentioning

confidence: 99%

Seasonal fluctuations in nutrients and carbohydrates in pecan leaves and stems

Kim¹,

Wetzstein²

2005

The Journal of Horticultural Science and Biotechnology

View full text Add to dashboard Cite

“…Comparisons of developmental timing, physiological maturity, and molecular and biochemical changes have provided strategies that modify culture protocols to obtain higher quality embryos. Pecan embryo development can be divided into a) histodifferentiation, b) cotyledon, b) maturation, and c) post-abscission stages based on morphological, physiological and biochemical properties and attributes (Jeyaretnam et al, 1999) (Fig. 4 ).…”

Section: Zygotic Embryogenesismentioning

confidence: 99%