scholarly journals Male gametophyte development steps in Pistacia vera L.

2018 ◽  
Vol 10 (3) ◽  
pp. 151-158
Author(s):  
ELAHE SADEGHIRAD ◽  
AHMAD MAJD ◽  
ALIREZA IRANBAKHSH ◽  
AMANOLLAH JAVANSHAH
Keyword(s):  
Male Gametophyte ◽  
Normal Growth ◽  
Control Area ◽  
Microspore Mother Cell ◽  
Pistacia Vera ◽  
Gametophyte Development ◽  
Male Gametophyte Development ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Conventional Cell

Sadeghirad E, Majd A, Iranbakhsh A, Javanshah A. 2018. Male gametophyte development steps in Pistacia vera L. Nusantara Bioscience 10: 151-158. Salinity affects the growth and development of plant. It also affects the development steps of male gametophyte in pistachio plant. Pistachio (Pistachio vera) is a member of family Anacardiaceae and order Sapindales. To study the effects of salinity on those steps, an experiment was performed in two locations in Golshan Anar with commensurate circumstances, namely: a control area (A) which was well-irrigated with fresh water, and the other area (B) which was well-irrigated with salty water added with NaCl solution with EC values of 14 dS.m-1. The flowers sampling was done in two Golshan Anar regions on the springtime based on a completely randomized design with three replications. The development steps of male gametophyte in pistachio plant were observed using conventional cell histology techniques and light microscopy observations and were then contrasted with samples subjected to no salinity stress. The results represented that several steps of male gametophyte development are as follows: (1) the anther experiencing normal growth which is tetrasporangiate, (2) cytokinesis taking place simultaneously with meiosis in the microspore mother cell, the tetrahedral tetrads, (3) microspores being delivered after meiosis by microsporogenesis were more or less irregular in shape during the contraction period. Finally, the abnormal shape and structure of the number of cases reviewed in three replicates of pollens can be one of the significant factors influencing the decline in the product.

scholarly journals The Effect of NaCl on Anther Development in Pistacia vera L.

2017 ◽  
Vol 7 (1) ◽  
pp. 132
Author(s):  
E Sadeghirad ◽  
A Majd ◽  
A Iranbakhsh ◽  
A Javanshah
Keyword(s):  
Normal Development ◽  
Male Gametophyte ◽  
Control Area ◽  
Microspore Mother Cell ◽  
Gametophyte Development ◽  
Factors Affecting ◽  
Male Gametophyte Development ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Conventional Cell

Plant growth and development are adversely affected by salinity. In order to study the effects of salinity on male gametophyte development steps in pistachio plant, an experiment was conducted in two areas in Golshan Anar with equal conditions: a control area (A) that was irrigated with fresh water well, and the other area (B) with salty water and EC values 14 dS.m-1 NaCl solution. A sampling of flowers was performed in two areas of Golshan Anar in the spring based on a completely randomized design with three replications. Male gametophyte development steps in pistachio plant were examined using conventional cell histology techniques and light microscopy observations and were then compared with samples subjected to no salinity stress. The results showed that some stages of male gametophyte development: (1) the anther undergoing normal development which is tetrasporangiate, (2) cytokinesis occurring simultaneously with meiosis in the microspore mother cell, the tetrahedral tetrads, (3) microspores being generated after meiosis by microsporogenesis were more or less irregular in shape during the contraction period. Finally, the abnormal shape and structure of the number of cases reviewed in three replicates of pollens studied can be one of the important factors affecting the decrease in the product.

scholarly journals A ticket for the live show: Microtubules in male gametophyte development

2010 ◽  
Vol 5 (5) ◽  
pp. 614-617 ◽  
Author(s):  
Sung Aeong Oh ◽  
Trudie Allen ◽  
David Twell
Keyword(s):  
Male Gametophyte ◽  
Gametophyte Development ◽  
Male Gametophyte Development

scholarly journals Proline is required for male gametophyte development in Arabidopsis

2012 ◽  
Vol 12 (1) ◽  
pp. 236 ◽  
Author(s):  
Roberto Mattioli ◽  
Marco Biancucci ◽  
Chiara Lonoce ◽  
Paolo Costantino ◽  
Maurizio Trovato
Keyword(s):  
Male Gametophyte ◽  
Gametophyte Development ◽  
Male Gametophyte Development

scholarly journals Transformation of Seed Non-Transmissible Hop Viroids in Nicotiana benthamiana Causes Distortions in Male Gametophyte Development

Plants ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 2398
Author(s):  
Lenka Steinbachová ◽  
Jaroslav Matoušek ◽  
Gerhard Steger ◽  
Helena Matoušková ◽  
Sebastjan Radišek ◽  
...  
Keyword(s):  
Nicotiana Benthamiana ◽  
Male Gametophyte ◽  
Pollen Grains ◽  
Potato Spindle Tuber Viroid ◽  
Apple Fruit ◽  
Mature Pollen ◽  
Rare Occurrence ◽  
Gametophyte Development ◽  
Male Gametophyte Development ◽  
Marker Proteins

Viroids are small, non-coding, parasitic RNAs that promote developmental distortions in sensitive plants. We analyzed pollen of Nicotiana benthamiana after infection and/or ectopic transformation with cDNAs of citrus bark cracking viroid (CBCVd), apple fruit crinkle viroid (AFCVd) and potato spindle tuber viroid (PSTVd) variant AS1. These viroids were seed non-transmissible in N. benthamiana. All viroids propagated to high levels in immature anthers similar to leaves, while their levels were drastically reduced by approximately 3.6 × 103, 800 and 59 times in mature pollen of CBCVd, AFCVd and PSTVd infected N. benthamiana, respectively, in comparison to leaves. These results suggest similar elimination processes during male gametophyte development as in the Nicotiana tabacum we presented in our previous study. Mature pollen of N. benthamiana showed no apparent defects in infected plants although all three viroids induced strong pathological symptoms on leaves. While Nicotiana species have naturally bicellular mature pollen, we noted a rare occurrence of mature pollen with three nuclei in CBCVd-infected N. benthamiana. Changes in the expression of ribosomal marker proteins in AFCVd-infected pollen were detected, suggesting some changes in pollen metabolism. N. benthamiana transformed with 35S-driven viroid cDNAs showed strong symptoms including defects in pollen development. A large number of aborted pollen (34% and 62%) and a slight increase of young pollen grains (8% and 15%) were found in mature pollen of AFCVd and CBCVd transformants, respectively, in comparison to control plants (3.9% aborted pollen and 0.3% young pollen). Moreover, pollen grains with malformed nuclei or trinuclear pollen were found in CBCVd-transformed plants. Our results suggest that “forcing” overexpression of seed non-transmissible viroid led to strong pollen pathogenesis. Viroid adaptation to pollen metabolism can be assumed as an important factor for viroid transmissibility through pollen and seeds.

Male Gametophyte Development

1993 ◽  
Vol 5 (10) ◽  
pp. 1265 ◽  
Author(s):  
Sheila McCormick
Keyword(s):  
Male Gametophyte ◽  
Gametophyte Development ◽  
Male Gametophyte Development
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